What Is the Difference Between Regular Spark Plugs & Performance Spark Plugs?

Answer Automotive technology has advanced so much that one may argue the standard spark plug has disappeared altogether and all plugs are performance enhanced. The truth is that standard plugs, much like ... Read More »

Top Q&A For: What Is the Difference Between Regular Spark Pl...

What Happens If You Replace Platinum Spark Plugs With Regular Plugs?

Many vehicles came from the factory with platinum or iridium spark plugs, but most applications also list the good old copper spark plug. There can be multiple versions of all of them, depending on... Read More »

Resistors Used in Spark Plugs & Spark Plug Wires?

In early model vehicles before fuel injection and engine management computers, copper or stainless steel core spark plug wires were used. This type of wire was encased in rubber, and this type of c... Read More »

The Difference Between Car Plugs and Boat Spark Plugs?

Spark plugs are an essential part of a motor. The function of a spark plug is two part. The first is to ignite the air/fuel mixture in the combustion chamber. The second part is to remove heat from... Read More »

What Do I Gap My Spark Plugs at for a 91 Johnson 115HP?

When you need to gap the spark plugs on a 1991 Johnson 115-horsepower outboard, the right distance between the electrodes is only part of the process. Even new plugs require an inspection before th... Read More »