1997 Chevrolet S10 Pickup Owner's Manual - Page 250

RECOMMENDED SA€ VISCOSITY GRADE ENGINE OILS FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST SAE VISCOSITY GRADE OIL FOR THE EXPECTEO TEMPERATURE RANGE. As shown inthe chat, SAE 5W-30 is b.est for your vehicle. However, you can use SAE low-30 if it's going to be 0°F (- 18"C) or above. These-numbers on an oil container show i t s viscosity, or thickness. Do not'use other viscosity oils, such as SAE 20W-50. HOT WEATHER "F "( 1 I - + 38 - + 2'7 + 60 + 40 + 20 0 ~ + 16 - $4 --7 --1 8 - I - i COLD SAE 5W-30 PREFERRED I LOOK FOR THIS SYMBOL I NOTICE: Use only engine oilwith the American Petroleum Institute CertifiedFor Gasoline Engines "Starburst" symbol. Failure to use the in recommended oil can result engine damage not coveredby your warranty. GM Goodwrench' oil meets all the requirements for your vehicle. If you are in an area where,the temperature falls below -20°F (-29°C)' considerusing either an SAE 5W-30 synthetic oil or anSAE OW-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. I - SI WEATHER DO NOT USE SAE 2OW-50 OR ANYOTHER GRADE OIL NOT RECOMMENDED 6-13