1996 Chevrolet Blazer Owner's Manual - Page 259

RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS _____-~ __ .__..__._s_._.___ FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST L I RATURE RANGE. SAL VISCOSITY GRADE O FOR THE EXPECTED TEN -~ -~ As shown in the chart, SAE 5W-30 is best for your vehicle. However, you can use SAE IOW-30 if it's going to be 0°F (- 1SOC) or above. These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity oils, such as SAE 20W-50. HOT WEATHER WOK FOR T I H S SYMBOL NOTICE: Use only engine oil with the American Petroleum Institute Certified For Gasoline Engines '(Starburst" symbol. Failure to use the recommended oil can result in engine damage not covered by your warranty. GM Goodwrench@oil meets all the requirements for your vehicle. Engine Oil Additives COLD WEATHER DO NOT USE SAE 2OW-50 ORANY OTHER GRADE OIL NOT RECOMMENDED Don't add anything to your oil. Your GM dealer is ready to advise if you think something should be added. 6-11