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A man's hands holding a fouled automotive spark plug. The insulator of the spark plug is black and burnt.

What To Do When Your Car’s Spark Plugs Are Fouled

Is your car’s performance sluggish and inefficient? It could be due to fouled spark plugs. We explain what to do when your car’s spark plugs are fouled here.

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A side profile of a new automotive spark plug. The plug is displayed horizontally and isolated against white.

The Evolution of Spark Plug Design: A Brief History

Spark plugs have advanced from their early days to the technology common in today’s cars. Explore the spark plug evolution from their origins to the modern day!

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A mechanic wearing a red glove holds a copper spark plug near the ignition socket of a vehicle's engine compartment.

DIY Spark Plug Testing: 5 Key Considerations

DIY spark plug testing is an excellent way to save money while ensuring spark plug viability. Learn how to conduct a DIY spark plug test and more!

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A close-up of a person holding a gas station pump nozzle and pumping fuel into the tank of their vehicle.

9 Ways Spark Plugs Can Improve Engine Efficiency

Spark plugs can enhance your vehicle in many ways, including improving engine efficiency. Learn how aftermarket spark plugs can benefit your vehicle’s engine.

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