Are your spark plugs overdue for replacement? Watch for signs like poor performance, engine knocking, and decreased fuel ...

Hemi engines have had 16 spark plugs since the early 2000s -- which equals two spark plugs per cylinder. This article ...

Replacing spark plugs is an essential and moderately simple task. However, to make the process even smoother, you'll want the ...

Swapping out spark plugs is, next to changing your oil, one of the most basic, straightforward bits of maintenance you can perform on your car. Spark plugs go bad over time, so it's important to keep ...

For hot rodders, spark plugs are often nothing more than inspection tools that reveal whether an engine is running too rich, too lean, or just right. Street guys look for a nice tannish-brown tint on ...

Gasoline internal combustion engines need three fundamental things: fuel, oxygen, and spark. The sexy aspects of modifying cars are focused on the first two elements: Double Pumper carburetors, ...

Spark plug market driven by demand for fuel-efficient vehicles and advanced ignition tech, projected to hit $14.7 billion by ...

Q: I got a pretty good shock from one of my Toyota Camry’s spark-plug wires. I didn’t think much about it at the time other than to never touch them again when the engine is running. Later I mentioned ...

Yes, they're small, and they all practically look just alike, and even in the best of circumstances you're throwing them away and replacing them every few races, but spending a little time to make ...

Aviation spark plugs come in two primary types: massive electrode (durable, cost-effective, shorter lifespan) and fine-wire (superior performance, extended lifespan, higher cost), with selection ...

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 ...