What brand of spark plugs does GM use?
2 Answers
GM stands for General Motors. There are many brands of spark plugs used in GM vehicles, depending on the specific model. Here is detailed information about automotive spark plugs: 1. Overview: Automotive spark plugs, commonly known as sparking plugs, function by discharging the high-voltage pulses sent through the ignition cables, creating an electric spark that ignites the air-fuel mixture in the cylinder. They can generally be categorized into standard spark plugs and insulator-protruding spark plugs. 2. Additional Information: The basic requirements for a high-performance engine include a stable, high-energy spark, a well-mixed air-fuel mixture, and a high compression ratio. The key component of a spark plug is the insulator. The insulator must possess excellent mechanical properties, high voltage resistance, the ability to withstand high-temperature shocks, and resistance to chemical corrosion. Most standard spark plugs are made of alumina-based ceramics.
When it comes to spark plug brands for GM vehicles, the one I'm most familiar with is ACDelco, since General Motors produces it themselves, so many original vehicles use it. For example, when I usually work on cars, I see Cadillac or Chevrolet engines almost always marked with the ACDelco logo. But it's not absolute—some older or specific models might use NGK or Denso, depending on the engine type, like four-cylinders often using ACDelco, while V8s might come with other brands. Confirming is easy—just check the owner's manual in the spark plug section, where the recommended model is listed. Spark plugs also have a long lifespan; with good maintenance, they can last up to 60,000 miles. Regular checks can prevent shaking or fuel consumption issues, keeping the car running smoothly. When replacing, it's best to buy original OEM parts to avoid any problems.
