Some upgrades sound faster just because of the name. Performance spark plugs are definitely in that category. The name alone suggests extra power, better combustion, and maybe a little boost in fuel ...

We may receive a commission on purchases made from links. The glow plugs in a diesel are like the spark plugs in a gasoline engine, but they function differently. The only similarities between glow ...

In most cases, the number of spark plugs in a gasoline engine is typically represented by the number of its cylinders. For instance, it's perfectly normal for a V8 engine to have eight spark plugs, a ...

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Any certified gearhead knows that diesel engines do not use spark plugs. But why not? If power in an engine is created by combustion or explosion of flammable liquids, won't a spark plug in a diesel ...

Spark plugs may be small, but they’re the heartbeat of your engine’s performance. Choosing the right type, setting the correct gap, and installing them properly can mean smoother starts, better fuel ...

When it comes to unconventional engine design, few exceed the Wankel rotary in terms of weirdness. Despite that, the same basic principles of internal combustion apply here: Fuel and air are mixed and ...

If you consider your spark plugs little more than disposable engine parts to be replaced for every event or two, you're missing out on a valuable engine-tuning tool. Not only can the correct plug ...

Like rotating tires or changing oil, replacing spark plugs is a job that can be easily, and inexpensively, done in the confines of your own home. Although they don’t need maintenance as often as the ...

One of the best ways to gain automotive knowledge is simply by asking the two-word question: “What is (a part, theory, thing)?” and locking in the definition after it is given. We’ll take a flier and ...

Mazda 13B rotary engine in a white Mazda RX-7 engine bay. - TTTNIS/Wikimedia Commons When it comes to unconventional engine design, few exceed the Wankel rotary in terms of weirdness. Despite that, ...