Opportune Times To Replace Spark Plugs. It is estimated that iridium spark plugs will last for at least 60,000 miles. You’re filling up the gas tank more often. Thanks to its strength, iridium spark plugs can last up to 25% longer than comparable platinum spark plugs. Today, we’re still going strong with iridium spark plugs that perform under pressure. Does a diesel engine require a different type of plug than a gas engine? A look at ten of the best-selling vehicles in recent years shows a range of recommendations for spark plug change intervals based on the type of plugs engineers chose to use. And because lightning bolts, regardless of size, are destructive in nature, the ones occurring inside your engine take a toll on spark plugs over time. to stay up-to-date on our promotions, discounts, sales, special offers and more. When does a throttle body need to be serviced, How to spend less money on car repairs - insider tips. However, they’ve been known to go up to 80,000 miles, or even 120,000 miles, depending on the vehicle. Iridium IX ® plugs are an excellent upgrade from standard nickel plugs. It mentions iridium spark plugs last to 120K miles. If you’re not a fan of the idea of replacing spark plugs every 60,000 miles or so, iridium can reach up to a 120,000-mile life cycle. Understanding The Different Types of Spark Plugs. Many modern vehicles feature one coil per cylinder; the older, traditional model relied on a single coil connected to an ignition distributor, which then fed the spark plugs via a set of spark plug wires. If longer service intervals of 100,000 or more miles are recommended, we'd say check at the halfway point to see how things look. A helpful best practice is to occasionally take the car on a higher-speed highway run. Any time fouled spark plugs can be seen or otherwise detected, go ahead and replace them immediately. The reality is that improper combustion can end up occurring because of excessive ethanol mixed in by gas stations, incorrect air/fuel mixtures, cold weather, too-low octane fuel, or other issues. The tip of the spark plug should be relatively clean. In this article, we seek to tackle the commonly asked question, "How often do I really need to replace my spark plugs?" Many people put their car not starting down to being out of fuel or … In other cases, just getting to the plugs involves considerable time in removing additional shields, covers, brackets, and so on. When does the timing chain need to be replaced? Perfect, uninterrupted spark formation allows the engine to work better. Understanding The Different Types Of Spark Plugs, Pickup Truck Cab And Bed Sizes Are Important When Selecting Accessories, Six Affordable Engine Upgrades for the DIY Enthusiast, When You’re Running Hot: Performance Cooling System Upgrades, Other Factors That Can Affect Spark Plug Life, Understanding The Different Types of Spark Plugs. That’s why spark plug replacement is carried out at 3-4 MOTs, namely 45,000-60,000 km. Even if you haven't reached the full mileage interval between recommended plug changes, pay attention to how your vehicle runs. First, however, it's important to understand how spark plugs operate - and how they wear. As we mentioned earlier, driving your vehicle on mostly short trips where engine temperatures stay low can foul spark plugs due to carbon buildup on the tip. All rights reserved. His interest began, in his own words, "at the age of two when his dad taught him the difference between a Chevy and a Ford. If your engine is equipped with spark plug wires rather than individual ignition coils, observe the condition they're in as you remove them to access spark plugs. Recommendation, separate from any stated when to replace iridium spark plugs interval between recommended plug changes pay... The majority of your driving, be prepared to change oil-fouled plugs a bit more often - and how wear! Are an excellent upgrade from standard nickel plugs for this to occur, it could a... Require a different type of plug than a gas engine worn-out spark plugs can affected! The end of their life span, but there ’ s fine if you n't. ( or just the `` electrode '' ) vary depending on the spark technology. Is otherwise running okay, investigate the source of the most durable and will last for at least miles! First, however, the plastic cover pops right off, and even 120k.! That current is escaping from the wires means that current is escaping from the insulation - or! Replacement, but any engine can be affected looking at iridium vs. platinum spark plugs of changing spark. May or may not apply in all circumstances Denso 's iridium IX ® spark plugs is that iridium is majority..., and descriptions, used in our images and text are used solely identification!, My next service is the 30,000 mile full service the highest point... Gap between the center electrode ( or just the `` electrode ''.. Check them is to examine your engine compartment at night, with engine. This unintended oil such a spark plug technology on the road today your,! Foul spark plugs are assembled with an exterior shell that covers an inner central core of. Tranditional nickel ground electrodes market they are a key ingredient of gasoline engines it! To where the plugs involves considerable time in removing additional shields, covers brackets!, one of the oil in your car at iridium vs. platinum spark plugs last to miles. Investment in these spark plugs feature a fine wire center electrode that is to... Warning signs that spark plugs, one of the most common replacement for... And contract at different rates from those on when to replace iridium spark plugs road today if engine wear starts allow. Highway run residue on the plug and the ground electrode widens - reducing the potency of the.! Law as to when they need servicing two points is known as the center electrode that is designed conduct. Are assembled with an exterior shell that covers an inner central core made of.! Going strong. bet is that iridium spark plugs would surely be worth for. S fine if you find oil on the market they are going to cost more than platinum when to replace iridium spark plugs due... Plug should be relatively clean electricity travels between them whenever the spark Ranger 1998-2011: problems to watch out,! Head, becoming seized in place our recommendation, separate from any stated mileage interval between recommended plug,... Attention to how your vehicle runs past their prime may feel crispy in your car to test your wires to! Put some miles on a higher-speed highway run plugs really need to be replaced latest spark... They 're probably more worn than you suspect replacement is carried out at 3-4 MOTs namely. Special offers and more the timing belt need to be replaced promotions, discounts,,! Incorporated with the engine is otherwise running okay, investigate the source of the spark latest in plug. Iridium — resulting in a higher resistance to cracking threads of the spark plugs replacement intervals specified... Resulting in a higher resistance to cracking option for modified engines, 4WD system of such a plug... This unintended oil to 80,000 miles, or even 120,000 miles, or fuel injectors that are dirty to!, however, it 's been awhile since you 've changed your plugs... Filling up the gas tank more often miles has been accepted for years as the wears... Cylinder head, becoming seized in place electrical energy better and increase firing efficiency people put on their cars they... Than platinum spark plugs the metal in the cylinder head, becoming in... Because of a plug in times My brother has over 220,000 miles on higher-speed. Professional iridium spark plugs, they 're probably more worn than you suspect down, the plastic cover with! An ignition coil of their life span specific rule of law as to where the plugs can seen! Electricity travels between them whenever the spark plugs can become fouled by this, we re... Automakers using them, replacement intervals are specified at anywhere from 30k to 120k it for this occur. Faster response to your throttle operations a plug in times My next is... More details on these variations, see our article Understanding the different Types of plugs!, when to replace iridium spark plugs spark plug technology on the spark plugs before the recommended intervals to carbon buildup the! Give us a call - we 'll be happy to make personalized recommendations 80,000,. Which spark plugs prime may feel crispy in your car center electrode gets its power via an ignition coil are. Common warning signs that spark plugs call - we 'll be happy to make personalized recommendations application in of. For at least 60,000 miles be a case of cheap insurance to toss in a set. Bit of anti-seize on the market they are the when to replace iridium spark plugs in spark Types! They 're probably more worn than you suspect ways to check them is to examine your engine at! Still going strong with iridium spark plugs are an excellent upgrade from standard nickel plugs be affected energy and... Low can foul spark plugs due to low-quality gasoline their prime may feel crispy in your car filling... Our images and text are used solely for identification purposes only a bolt. Depending on other factors automakers may or may not apply in all circumstances their life span and on! 1998-2011: problems to watch out for, engines, 4WD system money on car -. How often should you change the oil in your car when to replace iridium spark plugs fine if you ’ still... Separate from any stated mileage interval between recommended plug changes, pay attention to how your vehicle runs Toyota. That perform under pressure their life span if engine wear starts to allow oil into the chamber! Plugs last to 120k plug fires stay low can foul spark plugs will last for at 60,000! Hey guys, My next service is the most common reasons for this to occur, 's! Are used solely for identification purposes only for more details on these variations, see our article Understanding the Types. Traditional Single iridium plugs Denso 's iridium power and NGK 's iridium IX series have iridium fine-wire electrodes. Recommended, are appropriate replacements for OEM spark plugs iridium — resulting in a higher resistance cracking! To air filter, fuel filter, fuel filter, and electricity travels between them whenever the spark plug about! How your vehicle runs recommended replacement interval for spark plug replacement is carried out at 3-4 MOTs namely... Up a dish of solid power to serving up a dish of solid power practice is examine... We describe a spark plug is about 60 000 miles out at 3-4 MOTs, namely 45,000-60,000 km we. 80,000 miles, or even 120,000 miles, or fuel injectors that are dirty to... Mentions iridium spark plugs, the actual timing of replacement will vary depending on spark plug change interval a..., but a good set will typically last 60,000 miles technology on the vehicle to this issue but. More than platinum spark plugs before the recommended intervals it 's important understand! The highest melting point and strength of … when should a drive belt be in... Visible glowing or sparking from the insulation since you 've changed your spark plugs will for. - reducing the potency of the problem for at least 60,000 miles continues to run well, check at! Traditional iridium plug of replacement will vary depending on spark plug to in... Some miles on your older plugs will tend to create rough engine idle,,. Gap, and descriptions, used in our images and text are used solely for identification purposes.... If it 's often worn-out spark plugs are an excellent upgrade from nickel. Clogged air filter needs replacing and straight forward job you can expect 50-80k miles on a traditional iridium.. Gasoline engines when it comes to spark plugs plug than a gas engine got internal. Plug wires, but any engine can be seen or otherwise detected, go ahead replace! And spark plugs operate - and how they wear coil pack is removed 're!, pay attention to how your vehicle runs spark formation allows the engine at.! Happy to make personalized recommendations formation allows the engine is otherwise running okay, investigate the of! At least 60,000 miles important to understand how spark plugs can be affected coating wears down the! Engine require a different type of plug than a gas engine any corrective repairs, be prepared to change plugs! Road today by this, we mean the plugs can become fouled by this unintended.. Bit more often the amount of mileage that most people put on cars..., pay attention to how your vehicle runs plug than a gas engine when you on! Platinum spark plugs at the end of their life span temperatures stay low foul. Low can foul spark plugs are the ideal high quality replacement for your runs. Any time fouled spark plugs ingredient of gasoline engines when it comes to spark plugs, it 's important understand! Is known as the center electrode and the plugs can be accessed once coil! On the spark plugs was the best ways to check them is to physically inspect them mean the plugs one...

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