Use the engine oil and filter that the engineers at GM trust! Proper and consistent maintenance will make your vehicle last longer. A engine running on dirty oil with contaminants won't last long. Keep your engine clean with Mobil 1 and a GM/ACDelco OEM Professional Engine Oil Filter. A cartridge style oil filter features a bypass relief valve and anti-drain back valve. Filtering up to 21 micros or one-half the width of a human hair, you will keep contaminants out of your engine oil which in return will lengthen the lifespan. Simply drain your oil, replace your old filter, fill with new oil and check the level!