Major Spark Plug Brands Ranked Worst To Best
Major Spark Plug Brands Ranked Worst To Best We may receive a commission on purchases made from links. Most manufacturers suggest spark plugs (and wires, if you’re being thorough) be replaced between 30,000 and 100,000 miles depending on the vehicle and use case. Pulling a single plug is usually a straightforward process, as is inspecting the plug for things like corrosion, fouling, or oil. When replacing the plugs, manufacturers and technicians agree that the best practice is to do all of them at once, and check the gap on every plug....