The engine in your car, truck, or SUV can run on either copper, platinum, or iridium spark plugs. You probably heard the hype around iridium plugs and how they manage to deliver solid sparks while ...

I'm going to do some service on my Toyota Echo on Sunday, including new plugs. The current plugs are Denso iridium and have just over 30,000 miles on them. I was wondering if any of you have any basis ...

The engine of a car heavily depends on spark plugs, given their role in igniting the mixture of air and fuel in the combustion chamber. A top-notch spark plug ensures that your engine runs smoothly ...

Your engine’s spark plugs are one of its smallest and most important, parts. We look at some of the best. The engine in your car, truck, or crossover operates on the simple principle of capturing the ...

We may receive a commission on purchases made from links. Most manufacturers suggest spark plugs (and wires, if you're being thorough) be replaced between 30,000 and 100,000 miles depending on the ...

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