2008 Mercedes-Benz S550 4MATIC Q&A
2008 Mercedes-Benz S550 4MATIC Question: changing spark plugs
You can apply some di-electric grease to the inside of the spark plug boots to prevent difficulty in separating the plug wires from the plugs and its available at the auto parts store - Valleyautotech
lately my car feels heavy whenever i apply the gas pedal. it feels like is losing power. will that be the spark plugs? I never change them since i bought the car 1 year ago. the mileage on the c...