• SAE 5W-30As shown in the viscosity chart, SAE 5W-30 is bestfor your vehicle. However, if it is going to be 0°F(–18°C) or above and SAE 5W-30 is not available,you may use SAE 10W-30.These numbers on an oil container show itsviscosity, or thickness. Do not use other viscosityoils such as SAE 20W-50.Oils meeting theserequirements should alsohave the starburstsymbol on the container.This symbol indicatesthat the oil has beencertified by the AmericanPetroleum Institute (API).You should look for this information on the oil container,and useonly those oils that are identified as meetingGM Standard GM6094M and have the starburst symbolon the front of the oil container.Notice: Use only engine oil identified as meetingGM Standard GM6094M and showing the AmericanPetroleum Institute Certified For Gasoline Enginesstarburst symbol. Failure to use the recommendedoil can result in engine damage not covered byyour warranty.GM Goodwrench® oil meets all the requirements foryour vehicle.If you are in an area of extreme cold, where thetemperature falls below −20°F (−29°C), it isrecommended that you use either an SAE 5W-30synthetic oil or an SAE 0W-30 oil. Both will provideeasier cold starting and better protection for your engineat extremely low temperatures.Engine Oil AdditivesDo not add anything to your oil. The recommended oilswith the starburst symbol that meet GM StandardGM6094M are all you will need for good performanceand engine protection.5-14