Question: Should I Use OEM Spark Plugs?

Are Iridium spark plugs worth the money?

Iridium is said to be six times harder and eight times stronger than platinum.

This means that spark plugs can have even finer electrodes than ever before and still have excellent wear characteristics.

It is also worth mentioning, that with platinum and iridium plugs you generally get what you pay for.

….

What brand of spark plugs does Toyota use?

Genuine Toyota Double Platinum spark plugs, available for select Toyota models, offer several benefits: Platinum on both the center and ground electrodes reduces wear and provides a service life of up to 60,000 miles. Raised design provides excellent ignitability for a strong spark, smooth idle and optimum performance.

What’s better Denso or NGK?

In conclusion, both Denso and NGK iridium spark plugs are stable and unrivaled when it comes to longevity. Iridium is less conductive than copper spark plugs but it works well at low temperatures and lasts way longer. … If you are more concerned about the horsepower of your vehicle, then Denso is a good pick.

Is it bad to use different spark plugs?

Misfiring due to excessive heat, quenching, increased fuel consumption and even engine failure can occur from the use of incorrect or mismatched spark plugs, so it’s best to replace all of your spark plugs at the same time, and with the correct type of spark plug, to ensure smooth and consistent operation.

Are aftermarket spark plugs better?

That translates to better combustion, lower emissions, better fuel economy and more horsepower. Lower your costs. It’s true – buying an upgraded plug does cost more than a basic spark plug. Iridium plugs cost on average $3-$4 more per plug, which only costs you $16-$32 more for your entire engine.

Do spark plug brands matter?

Yes, the brand matters when it comes to performance and how long they last. No. All spark plugs are made same, whether they’re cheapest or the most expensive ones.

Does spark plugs increase horsepower?

In short, yes, in some situations spark plugs can increase horsepower. … The theory behind spark plugs increasing horsepower is that by providing more spark to the firing tip of the spark plug, it will (and does) combust more fuel.

Will changing my spark plugs improve performance?

Changing the spark plugs is a way of assuring top efficiency and performance. The misfires that may occur will increase exhaust emission as well as harm gas mileage. … This there may be lifelong spark plugs in the car, but problem still can happen that may result in spark plugs becoming increasing more defective.

What’s the best spark plugs for horsepower?

Our picks of the 10 Best Spark Plugs for Horsepower ReviewsNGK 7090 BKR5E G-Power. … ACDelco 41-962 Professional Platinum. … NGK 7090 G-Power Platinum BKR5EGP. … Bosch 9620 Double Iridium Pin to Pin. … ACDelco 41-993 Professional Iridium. … Genuine Motorcraft SP-493 AGSF32PM. … DENSO #4503 PLATINUM Twin Tip.More items…•

What is an OEM spark plug?

Electrode Design and Shape is Essential: OEM spark plugs have carefully crafted electrodes that are ground into a specific shape — this process is costly and adds complexity and time to manufacturing. This shape is important to optimize performance and efficiency of the plug.

Do Iridium spark plugs really make a difference?

Thanks to its strength, iridium spark plugs can last up to 25% longer than comparable platinum spark plugs. Iridium spark plugs feature a fine wire center electrode that is designed to conduct electrical energy better and increase firing efficiency.

How long do Toyota spark plugs last?

For example, Toyota recommends changing the plugs every 120,000 miles on a Corolla, RAV4 or 4Runner, but every 60,000 miles on an 86 coupe, which was developed with Subaru and uses a Subaru engine.

Do Iridium spark plugs improve performance?

More engine power: Iridium Plugs improve the engine performance in terms of power. … Since there is little dispersion in the position of the spark, idling is stable too. Better fuel economy: Since Iridium Plugs ensure excellent ignition, the gasoline is burned efficiently.

Can I use platinum spark plugs instead of Iridium?

Platinum may be harder than copper, but iridium is the hardest among the three, and iridium spark plugs outlast platinum spark plugs by almost twice the mileage. … Platinum spark plugs offer a slightly cheaper but less reliable option if you don’t want to spend as much on iridium spark plugs.

Do you need to gap NGK Iridium spark plugs?

In most cases your Iridium Power plugs do not need to be gapped. … Should you decide to re-gap your Iridium Power plug, use extreme caution as improper gapping may damage or destroy the Iridium center electrode or porcelain center.

Do Iridium spark plugs improve gas mileage?

Iridium spark plugs give you even better gas mileage, performance, reliability, and longevity than double-platinum plugs. … Iridium spark plugs are perfect to use on high-performance engines.

What are the best spark plugs for fuel economy?

Autolite HT15 Platinum High Thread Spark Plug. Motorcraft SP-515 Spark Plug. Bosch 4417 Platinum+4 FGR7DQP Spark Plug. Denso (4504) PK20TT Platinum TT Spark Plug. NGK 3403 G-Power Platinum Alloy Spark Plug. NGK 7090 BKR5EGP G-Power Spark Plug. NGK (5464) BKR5EIX-11 Iridium IX Spark Plug.More items…•

How long do NGK Iridium plugs last?

NGK gives them a life expectancy of 40-50k miles. But they have to temper their projections as driving conditions and motor modifications differ. Typically we have found you can expect 60,000 to 80,000 miles on an unaltered motor. NGK Laser Iridium Spark Plugs have iridium center and a platinum ground electrodes.

Are NGK Spark Plugs better than Bosch?

NGK plugs are well manufactured and have the lowest failure rate from what I’ve seen around. The spark potential is not as powerful as Denso, but NGKs will last you way more miles than any other brand. Best iridium spark plugs out there. NGK is the OE choice for most Japanese vehicles.

Do expensive spark plugs make a difference?

This would be more accurately described as “less performance loss.” Spark plugs do not increase the performance of an engine — even spark plug manufacturers are fairly forthright about that. … They won’t make the engine perform better than it did when it was new, but they will help it stay at that level longer.

What is the benefit of iridium spark plugs?

Iridium Plugs improve the engine performance in terms of power. The extra power becomes apparent in situations like climbing hills, giving you a comfortable driving and touring experience. The ultra-fine center electrode of an Iridium Plug ensures fast ignition and improves the engine’s starting characteristics.