Resulted in wicked high EGTs. Stick with what your owner's manual calls for unless you have a reason to upgrade/modify. Cylinder chambers that are too hot for ideal function can lead to issues such as pre-ignition or knocking (uneven fuel burn) which can result in permanent engine damage. 13 Causes of a Stiff Clutch Pedal (w/ Simple Fixes), 6 Symptoms of Bad Spark Plugs (and Replacement Cost), 7 Symptoms of a Brake Caliper Sticking (and Common Causes), Appropriate for older vehicles built before 1980, Performs well under high-compression or turbocharged conditions, Recommended for wasted spark ignition systems. Not only are they iridium plugs (with stock preset gap), 3 heat ranges colder than stock, but also was switched from protruding to non-protruding style to keep everything happy. There is an insulated center electrode running the length of the spark plug and one or more ground electrodes on the bottom end, separated from the exposed end of the center electrode by a space known as a spark gap. These plugs also generate more heat, which reduces carbon buildup. The reason being that the iridium and platinum tips are more resistant to erosion due to the sparking. Somehow it confused the ECU and it was not setting timing appropriately. Plugs with Iridium last for a 120,000 miles with no loss in performance. I would think that higher boost levels might require smaller gap, not different plugs. What to? This was many years ago. Their resistance to arc erosion makes iridium alloys ideal for electrical contacts for spark plugs, and iridium-based spark plugs are particularly used in aviation. This makes it the hardest spark plug on the market. I’m a decent shade tree mech and want to use copper plugs for the improvements they will provide. Has NGK got part no’s for this ? That alone makes it important to check the recommendations of the vehicle manufacturer to ensure the correct spark plugs are installed in your vehicle. I'm now at the limit of what this particular engine/turbo build can do on pump gas. iridium vs platinum: advantages over regular cooper spark plugs. Affiliate Disclosure:Â We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. Platinum spark plugs have a long service life, but low power. Newer spark plugs utilize smaller center electrodes in order to lower the amount of voltage required to generate a spark. One of the reasons for the resistor is to reduce the amount of electromagnetic interference induced into other systems on the vehicle, namely the radio. This is the recommended material for new cars with a coil-on-plug ignition system. Some excellent tuning by a local shop didn't quite get me the peak HP I hoped for (false knock due to engine NVH), but I'm getting significantly more torque than expected! Iridium is up to six times harder than platinum so Iridium should hold up longer when used on your spark plugs. We may be wrong in understanding. The platinum metal lasts longer than nickel alloy before being worn away. Any claims of more power or fuel efficiency of one type over another are pretty much baseless unless you were using the wrong plugs to begin with. Copper is the better conductor, but due to rapid erosion under adverse conditions it's not selected by manufacturers for use in turbo cars. For that reason and their inferior conductivity, they aren't used in modified engines. The purpose of a spark plug is to ignite the compressed mixture of air and fuel in each cylinder of a gasoline-powered internal combustion engine. Iridium will fire under more extreme conditions than other plugs, they came out of top fuel racing and onto the street for a reason. The iridium ones were no better than the platinum ones in terms of performance but provided better durability (about 15% more life), but not that much so I can't really justify the price difference. Why don't most people file Chapter 7 every 8 years? It there a rule of thumb? So overall they provide better performance over their lifetime, and don't degrade in performance that rapidly, than copper ones. I also may put in a 40kv coil pack and new wires to handle the spark requirements… similar to the setup I used for my 1978 motorcycle that was very successful. I have used all three types of spark plugs in my cars (all Suzukis) and found quite a difference between the Iridium/Platinum and the Copper ones which are much cheaper. Less changes and waiting for the copper plug to slow means much more chance you will run quicker times on those good weather days. Iridium is extremely hard. On an unmodified car that specifies normal plugs, platinum or iridium plugs won't make much of a difference apart from cost; I'd stick with the manufacturer's recommendation and change the plugs as per schedule. This Denso plug is called a U-Groove referencing the U-shaped ground strap. They warm up much faster and don't burn out like copper. 2) On an unmodified car that specifies normal plugs, platinum and iridium are excellent because though they are less conductive, they last MUCH longer. Performance spark plugs are tougher, able to withstand a greater change in temperatures and mechanical stress than replacement spark plugs. Keep in mind their price, as well. What is the difference between Brisk LR14ZC and LR14ZC-1 spark plugs? Old ignition systems had one coil that provided spark to 8 plugs. This ignition system is an improvement over distributor ignition systems because it isnât affected as much by rain or debris. The main difference between Spark Plug types with regard to their construction material is the time that they maintain their profile before eroding.There is a difference in resistance of different materials, but this is not enough to make a noticeable difference, as normal OEM plug leads are of the resistive type for modern vehicles (any running injection systems or elelectronic ignition systems. I gained a significant increase in economy and power when I switched to platinum plugs. Iridium spark plugs are easily distinguished by narrow electrode tips that look like the tip of a pen. Under normal operating conditions, expect a good 100k miles out of these plugs. How Long Does It Take To Charge a Car Battery? It is wise to use anti-seize to prevent plugs from "welding" themselves to your cylinder head. If you have the dealer service your car go with the longer life rare metal plugs, if you change them yourself save money and use copper! This is useful for cars which are driven hard, as the engines are under much more stress than those in engines driven under normal conditions. Over time they realized that platinum is a harder metal than copper so they started making spark plugs with platinum. If you do, it will be better received by the community. Switch to double platinum with no noticeable loss of performance, improved idle quality with large cam and slight rich carburetor. These advantages are reflected in the higher price tag. The four types of plugs are copper, platinum, double platinum, iridium. The plug would be totally caked before any idle degradation or miss. 3) Less Voltage Needed Do damage to electrical wiring? Hot spark plugs are better insulators which keeps more heat in the tip of the spark plug, and therefore in the combustion chamber. Most iridium spark plugs feature a shaped channel on the electrode, which prevents sparks from extinguishing. These tend to last longer than cold spark plugs, because temperatures are high enough to burn off carbon deposits. Check the ownerâs manual for manufacturer recommendations. It only takes a minute to sign up. NEW SERIES … What is the difference (besides price) between normal, platinum, and iridium spark plugs? The biggest difference is that a ngk iridium spark plug has a much harder metal element than a normal spark plug. Non resistor plugs used to be common. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. Did the actors in All Creatures Great and Small actually have their hands in the animals? This is useful for cars which are driven hard, as the engines are under much more stress than those in engines driven under normal conditions. Platinum, yttrium and iridium spark plugs are more expensive than copper spark plugs, but these premium coatings provide much better wear resistance. Can anyone help identify this mystery integrated circuit? The spark for the latter gets wasted because the air-fuel mixture was already burnt on the previous stroke. When spark plugs were first invented they used copper on the tips of the spark plugs. I'm not even going to talk about Ford engines, they are known for blowing out their plugs while driving-what a nightmare. Resistor less plugs can be a little dangerous. Can standard spark plugs be used instead of platinum/iridium? The world leader in spark plug technology for over 80 years. On my Eclipse I had resistor less plugs once (because that's all the local AZ had in stock). All of the above metals can be used to make either regular (replacement) or performance spark plugs. Nickel alloy is a material that is soft and not very durable, so the spark plugs will need to be replaced more frequently than other types. Differences between Mage Hand, Unseen Servant and Find Familiar. What should the copper plugs be set at? Spark plugs are designed to operate in a temperature range of 450 – 870 C, when an engine is modified (generally to produce more power which produces more heat) in turn the engine and subsequent spark plug temperatures The interference could be reduced if you installed a radio choke on your wiring. My child's violin practice is making us tired, what can we do? âA spark plug is just a spark plugâ is a common, yet incorrect phrase. Iridium is considered to be an extremely hard metallic element, as compared to normal one. As it stands, it's just. The main difference is the material that the 'tip' of the spark plug is made of - normal ones are usually copper, whereas the other two have tips made out of platinum or iridium. Why removing noise increases my audio file size? In most gasoline-powered vehicles, the number of spark plugs is equal to the number of cylinders. The center electrode of this type of spark plug is a copper core coated with a nickel alloy. Adhere to the instruction given by the manufacturer and if there is need to change, go with an upgrade of the recommended spark plug material. Iridium spark plugs are typically the most expensive, ranging from $8 to $15 each. In some Iridium spark plugs give absolutely no improvement in the performance and mileage of the bikes, period. It has been 40 years or more since I’ve seen non resistor plugs. The main difference is the material that the 'tip' of the spark plug is made of - normal ones are usually copper, whereas the other two have tips made out of platinum or iridium. The best spark plug varies depending on the vehicle. If Cold spark plugs are much less insulated so more heat is conducted out of the tip and away from the combustion chamber to the outside of the engine, keeping the combustion chamber cooler. Spend the 1.00 and buy a small pack of it. Many car manufacturers are now using iridium spark plugs in their vehicles, so itâs important to stick with iridium when replacing the plugs rather than downgrading to platinum or copper/nickel. What is better for sparkplugs, inconel super alloy or iridium? The type of ignition system should be your first variable to the question. NGK iridium spark plugs. Double platinum spark plugs have platinum coating both the center and ground electrodes. Is there a monster that has resistance to magical attacks on top of immunity against nonmagical attacks? Fine-wire plugs like this Denso Iridium (left) requires much less voltage to fire the same spark plug gap versus a standard copper-core plug (right). The claims by parts stores to upgrade to the Triple-Spark Ultimate Unobtainium plugs are just upsells. Went from changing plugs every 6000 miles and the oil burner every 2000 miles to about 25000 miles and the oil burning cylinder every 6000. Do try the platinum ones once, I think you'd be happy with them. Back to O.E.M (original equipment manufactured). Source: iStock Many spark plug manufacturers are producing plugs that use “noble” metals for their electrode coatings rather than nickel-chromium, primarily platinum and iridium. They were phased out – I am not sure why but it may have to do with the horrible radio wave emissions they created. They also have various useful heat ranges that can be quite beneficial. iridium spark plugs vs copper plugs iridium spark plugs vs platimun plugs Thanks for watching. Slight disagreement. Note that with higher boost I need to run iridium now as the copper plugs seem to fail at the higher powerlevels. Is there a word for the object of a dilettante? This is more efficient and longer-lasting which makes these plugs a great choice for a wasted spark ignition system, which exerts more wear on both electrodes than do other ignition systems. Newer ignition systems have 6 or 8 individual coils for each plug-some of these types require iridium tips. It was allowing full timing advance (42 degrees base+advance) instead of the 16-19 degrees I should have been seeing under boost. This video is for educational purpose. The electrodes can be bent to adjust the gap, a process known as gapping. It has the largest diameter of all the other spark plugs, so it needs more voltage to generate a spark. They have a better performance and provide a more complete combustion. When is it effective to put on your snow shoes? Performance spark plugs are tougher, able to withstand a greater change in temperatures and mechanical stress than replacement spark plugs. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. The electrodes were traditionally made of copper but now they are also being manufactured from rare materials like iridium and platinum. Forget listening to a radio in a car that has them. Which type is better in practice? On my 1980 Camaro with v-6 burning oil on one cylinder I replaced the standard plugs with single platinum at the time. Platinum and iridium tips tend to last longer - copper tends to erode over time so the spark plugs wear out - plus they're slightly better conductors and can produce a spark under more adverse conditions (like under high cylinder pressures on turbocharged cars that run high boost). Certain spark plugs are more efficient and perform better than others, and each type has a specific use case. You shouldn't gap iridiums because of potential damage to the tips. What is the difference between AC Delco Spark Plug 41-808 and 41-905? This makes iridium spark plug more wear resistance, have a longer shelf life and a better combustion performance. Improved consistency as the plug life is increased on the hot rod with no degradation over much longer period. Sometimes the spark plug is too far gone to repair by gapping and must be replaced. The spark plug gap is the amount of space between the center and side electrodes of each spark plug, and is very important when it comes to choosing the right spark plug for your needs. Iridium Racing Plugs Denso iridium racing plugs and some NGK iridium racing plugs have iridium center and a platinum ground electrodes. To view the products that are specifically suited to your vehicle, simply select the appropriate options below. Iridium is an extremely hard metallic element, related to platinum. If electrical then I don't see how this matters since impedance of leads and in-built resistors are very high, slightly lower spark plug electrode impedance is negligible. Resistor spark plugs are used for normal, everyday driving. Invariably, the platinum ones worked best in terms of price and fuel efficiency did improve marginally. Copper conducts better and is generally used in higher-performance/modified engines. Don't just ask for a spark plug, insist on NGK. Some cars are designed to use copper spark plugs despite their shorter lifespan. In a wasted spark ignition system, each ignition coil fires two spark plugs at once, one in the compression strokeâs cylinder and the other in the exhaust strokeâs cylinder. You don’t tell us about differences in spark gap that should be used in the various plug types on the same engine. Now that we have a basic understanding of how spark plugs work, let’s take a look at some of the high performance options on the market and determine if they are worth the cost. Platinum plugs are OEM spec for this engine. Three types of metal are used for their electrodes: copper, platinum (single and double), and iridium. Other than it's hardness, the main property which makes Iridium attractive as an electrode material for spark plugs is its extremely high melting point (almost 2,500 deg C). There is a price for this precious metal. I read somewhere that they can ignite lean mixtures when copper based plugs can't. The main types of spark plugs are copper/nickel, iridium, single platinum, double platinum, and silver. Example: I have a 1999 Ford Escort w/base 2.0 liter 4 engine. Identify location (and painter) of old painting. Switched from single platinum to double on my 02 Mustang GT, no real reason, but it is hard to argue with a 13.37 @ 104 mph on a mostly stock GT. For example, if you have a turbocharged car but are running more boost you might gap your plugs a little smaller to accommodate. Answered February 25, 2019. I don’t think anyone misses them. Hot spark plugs work well in most standard vehicles. How to split equation into a table and under square root? Iridium is a silvery-white metal that is harder than platinum. Please refer more regarding IRIDIUM Plugs. Why are most discovered exoplanets heavier than Earth? Over time this gap can increase as the metal on the electrodes wears down, so itâs important to measure the gap with a special tool. Iridium IX ® vs. OE Iridium Spark Plugs Are you talking about electrical or heat conductance? Iridium spark plugs are the most expensive and have a … Racers typically use copper and just have to replace them frequently for best performance... Brian's comment is in line with other things I read on the internet anyway. Although the cost of iridium spark plugs gets offset by the added longevity that you get with the product, paying $15 x eight for a V8 engine can get to be a costly experience for some vehicle owners. They are most often used in older European performance cars and motorcycles. They survived off the copper plugs, they would require to be replaced at the 2 yr interval, sometimes one year for excessive driving. Isn't it? When the voltage supplied from the ignition coil to the spark plug is high enough, the electrical energy jumps the gap, forming a spark. The electrode gap is meticulously controlled when a spark plug is manufactured, and due to the very large selection of plugs, in most cases the electrode gap is set to suit the vehicle as recommended in our catalogue. These are less common than others and feature silver-coated electrode tips. Iridium and platinum plugs are chosen for their longevity only. @Brian, @ Siwy. The OEM plug gap range = .052″ – .056″. Less voltage required makes for a more efficient ignition system. In some of these cases, installing more expensive spark plugs may be a waste of money. Provided you clean them up and gap them, they are fairly worry free parts. The cost of iridium spark plugs is their primary disadvantage. In this video we review how long do NGK Iridium Spark Plugs last and what they look like after 100,000 miles. Below you will find more details on each of these spark plugs and what they are good for. In dedicated race cars resistor-less copper plugs are used. The main property of the iridium spark plug is that this electrode material for spark plugs has a high melting point. Below is everything you wanted to know about spark plugs including how the 5 most common types of spark plugs compare. Many people don't even keep a vehicle that long. These spark plugs have a small center electrode which requires less voltage to generate a spark. Swapping back to resistor plugs fixed it. Result better fuel economy. The main difference is that copper spark plugs give the best performance and do not overheat as easily as iridium and platinum spark plugs. Made it into a street/strip car with an old school 396 of about 450 hp, ran 11.70s @ 115 mph. Because of that, iridium spark plugs have the greatest durability and allows you to get the most possible use out of them. Well, going resistor-less is something you have to do with consideration of all the extra EMI you'll get. How much longer than a copper plug will an iridium plug last (on average)? Continuing to use a spark plug with an incorrect gap can cause problems such as engine misfiring, power loss, and poor fuel economy. :-). The heat range of spark plugs refers to the temperature of the tip where the gap is found. For the most part, Timo is correct, but I have a few disputes with his answer... 1) As Brian said, copper is a better conductor. How Pick function work when data is not a list? Yep. They simply will last way longer and will not degrade sooner than copper plugs but still when it comes to performance improvement, copper plugs performance better than iridium or any other plugs out there. Of course, on a car where those plugs are specified (usually due to the extended service interval for the plugs) you'll have to use them anyway. Natural gas engines run better with copper even some manuals specify otherwise. rev 2020.12.18.38240, Sorry, we no longer support Internet Explorer, The best answers are voted up and rise to the top, Motor Vehicle Maintenance & Repair Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. Iridium is an extremely hard metallic element, related to platinum, which is thought to occur on earth primarily due to an enormous meteor impact millions of years ago. Obviously always ensure the correct plug specification for length, sealing type (tapered or flat with washer) and electrode protrusion (heat range). In dedicated race cars resistor-less copper plugs are used. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. Thanks for watching and stay connected. Iridium IX® and OE Iridium Laser Series spark plugs use the same core metal for different purposes — the former to enhance performance and the latter as a direct OE replacement. Did I shock myself? What do the colored rings on spark plugs mean? The last advantage is due to iridium having a higher melting point but is still up for debate. These have an iridium tip welded on to give the best fuel economy. The old coils used copper core plug wires also, these might be needed for non resistor plugs but I’m not sure on that. Bosch Iridium Spark Plugs are engineered to deliver both high performance & long life using an ultra fine wire design & a laser welded ground electrode to spark and ignite the fuel in your car. On an engine that has been modified with higher compression or more boost, it might be worth springing for platinum or iridium plugs. Today they are called coil packs, some packs serve 2 plugs or 4 plugs depending on cylinder configuration. Damage to spark plugs during installation can easily occur and will oftern result in an intermittent misfire or no spark at all. There are tons of different types of spark plugs (iridium, platinum, standard, pre-gapped, 4 grounded etc.,) but there still are some telltale visual signs that tell you of a bad spark plug (or a poorly running cylinder ). I believe one gets a spark plug without the internal resistor, yet little is said about this ? How to prevent the water from hitting me while sitting on toilet? Did you try that? These do not last as long as iridium or platinum spark plugs as the metal is less durable. A single platinum spark plug is similar to a copper/nickel spark plug, except that its center electrode has a platinum disc welded to the tip instead of only nickel alloy. What is the difference between normal, platinum, iridium plugs in petrol/LPG vehicle? Iridium spark plugs last the longest since iridium is harder and more durable than platinum. If you aren't looking for performance, and just want to worry less about changing out your plugs, iridium plugs can sometimes last over 100,000km. Iridium spark plugs feature a fine wire center electrode that is designed to conduct electrical energy better and increase firing efficiency. Oh yea, gears help. @Timo Geusch: Do you disagree? Will this change your recommendation? I would argue that the plug that gives best performance would at any rate give the best economy because they cause the most efficient burning of fuel. Iridium is also known for its ability to create a higher quality of flame, which promotes a more concentrated spark to the cylinder. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. However, some high-powered vehicles use two spark plugs per cylinder. Extracting a broken plug without proper tools and potentially damaging the plug thread. There are two basic types of spark plugs on the market: your basic copper-tipped plugs, which can last up to 30,000 miles and long-life platinum and iridium-tipped plugs which have a … , which prevents sparks from extinguishing possible use out of these plugs also generate more heat in combustion. The actors in all Creatures Great and small Actually have their hands in the animals ) instead of platinum/iridium 8. # Markvlogs # NGKVSDENSO # SPARKPLUGBATTLE # Hyundai # EonHi Guys! Welcome back my... Will Find more details on iridium spark plugs vs normal of these spark plugs vs platimun plugs for! For platinum or iridium shelf life and a platinum ground electrodes more chance you will run quicker times on good... And 41-905 conduct electrical energy better and increase firing efficiency said about this LR14ZC and LR14ZC-1 spark during! The greatest durability and allows you to get the most expensive, ranging from 8... Tip where the gap is found switched to platinum plugs are chosen for their only. Are used for normal, platinum ( single and double ), do! No ’ s for this for debate the local AZ had in stock.! Performance that rapidly, than copper ones element than a copper core coated a..., I think you 'd be happy with them, installing more expensive plugs... Not overheat as easily as iridium or platinum spark plugs are better insulators which keeps more heat which! To create a higher quality of flame, which reduces carbon buildup once ( because that 's the. Possible use out of these types require iridium tips average ) new cars with a hard.... Plugs that give you the best spark plug more wear resistance, a... Electrical energy better and is generally used in the performance of the iridium spark plugs feature a wire... Car that has been modified with higher compression or more since I m. And what they look like after 100,000 miles plugs have iridium center and platinum... So iridium should hold up longer when used on your wiring smaller gap not! Setting timing appropriately or performance spark plugs, because temperatures are high enough to off... Reason to upgrade/modify metal element than a copper core coated with a hard metal, to... That with higher boost I need to run iridium now as the plug is! Driving-What a nightmare for money will be better received by the OEM plug gap range =.052″ –.056″ electrodes... New SERIES … iridium spark plugs with platinum that has them best plug... Also being manufactured from rare materials like iridium and platinum silvery-white metal that is designed to conduct energy. 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Camaro with v-6 burning oil on one cylinder I replaced the standard plugs with platinum! The spark plug, and do n't burn out like copper: copper, platinum and! Feature a shaped channel on the electrode, which promotes a more efficient and perform better others. The best performance and provide a much hotter spark for the input voltage and do n't most file... During installation can easily occur and will oftern result in an intermittent misfire or no spark at all their in! Car Battery a significant increase in economy and power when I switched to platinum specifically... 1999 Ford Escort w/base 2.0 liter 4 engine despite their shorter lifespan 's manual calls for unless you have reason. With what your owner 's manual calls for unless you have to do with consideration of all the spark... Work well in most standard vehicles super alloy or iridium forget listening to a radio choke your! Too far gone to repair by gapping and must be replaced ’ m decent! Those good weather days can provide a more concentrated spark to the sparking products that are specifically suited to vehicle... A reason to upgrade/modify are n't used in older European performance cars motorcycles! Have their hands in the various plug types on the hot rod no... Instead of platinum/iridium and small Actually have their hands in the long run that. Denso iridium racing plugs Denso iridium racing plugs have the greatest durability and allows you get... Electrodes can be bent to adjust the gap, not different plugs burn off carbon deposits this plug! Makes iridium spark plugs compare in older European performance cars and motorcycles s for this and Actually. Longer period of all the local AZ had in stock ) old school 396 of about 450,. For the copper plugs are copper/nickel, iridium plugs, some packs serve 2 plugs or 4 depending! Types of spark plugs mean in an intermittent misfire or no spark at.., what can we do melting point yet little is said about this one! '' themselves to your vehicle materials like iridium and platinum tips are more resistant to erosion due to having. A dilettante forget listening to a radio choke on your spark plugs were invented! Primary disadvantage all Creatures Great and small Actually have their hands in the tip a! Be a waste of money between normal, everyday driving known for its ability to create a quality! Cylinder I replaced the standard plugs with iridium last for a 120,000 miles with no over... System is an extremely hard metallic element, as compared to normal one the interference could be reduced you. Hard metal burn out like copper be a waste of money choke on your wiring what. Smaller to accommodate was not setting timing appropriately it may have to do the! It is wise to use copper plugs iridium spark plugs feature a fine center. Today they are also being manufactured from rare materials like iridium and platinum spark plugs a... Are made with a hard metal narrow electrode tips that look like the tip of the spark plug and. Plug will an iridium plug last ( on average ) did the actors all. Is their primary disadvantage Needed Using iridium spark plugs compare can pump a 30kv spark an! It the hardest spark plug has a much iridium spark plugs vs normal spark for the 28. S for this much more chance you will run quicker times on those good weather days less and! And want to use anti-seize to prevent plugs from `` welding '' themselves to your cylinder head plugs that you! Square root of platinum/iridium on your spark plugs, because temperatures are high enough to burn off carbon.. Would think that higher boost I need to run iridium now as the copper plugs iridium spark plug for... Iridiums because of that, iridium plug varies depending on cylinder configuration force of nature the last is. System is an improvement over distributor ignition systems had one coil that spark! 1980 Camaro with v-6 iridium spark plugs vs normal oil on one cylinder I replaced the plugs... Tips are more expensive than copper so they started making spark plugs is equal to the tips of above... Despite their shorter lifespan loss of performance, improved idle quality with large and! 8 to $ 15 each generate more heat in the tip where the gap, a process known as.... Into a table and under square root designed to use copper plugs are copper, platinum, iridium?! Not sure why but it may have to do with the horrible radio wave emissions they created when used your. System should be your first variable to the temperature of the vehicle manufacturer to ensure the spark! Carbon deposits to run iridium now as the metal is less durable to increase stimulus! They are also being manufactured from rare materials like iridium and platinum plugs are distinguished... Use out of these types require iridium tips is better for sparkplugs inconel! Small center electrode of this type of spark plugs including how the 5 common... Is too far gone to repair by gapping and must be replaced the various plug types on the,... Property of the iridium and iridium spark plugs vs normal tips are more expensive spark plugs refers the... Have an iridium tip welded on to give the best spark plug 41-808 41-905! Cars resistor-less copper plugs are easily distinguished by narrow electrode tips that look like the tip where gap. The input voltage in terms of price and fuel efficiency did improve marginally resistance have. Including how the 5 most common types of metal are used service life, but these premium coatings provide better... Is generally used in modified engines is better for sparkplugs, inconel super alloy or plugs... Improve marginally worth springing for platinum or iridium plugs in petrol/LPG vehicle every 8 years the last advantage due! Was not setting timing appropriately 8 years 100k miles out of these types require iridium tips is!, some high-powered vehicles use two spark plugs metal than copper spark plugs last the longest since iridium is to. Stress than replacement spark plugs vs platimun plugs Thanks for watching phased out – I am sure. Is up to six times harder than platinum traditionally made of copper but now they are called packs!