1994 Pontiac Firebird Owner's Manual - Page 195

Service and Appearance Care Recommended SAE Viscosity Grade EngineOils For best fuel economy and cold starting, select thelowest SAE viscosity grade oil for the expected temperature range. As shown in the chart, SAE 5W-30 is best for your vehicle. However, you can use SAE 1OW-30 if it's going to be 0°F (-18°C) or above. These numbers on an oiicontainer show its viscosity, or thickness. Do not use other viscosity oils such as SAE 1OW-40 or SAE 20W-50. If you cannot find oils with the new "starburst" symbol on the front of the container, you should look for and use oils containing the following three things: HOT WEATHER These three things are usually included in a doughnut shaped logo (symbol) on most containers.If you cannot find oils with the "starburst" symbol, you should look for oils with the doughnut shaped symbol, containing the three things noted above. NOTICE: If you use oils that do not have either the "starburst" symbol an or API SH or SG designation, you can cause engine damage not covered by your warranty. GM Goodwrench@ oil Canada, (in GM Engine Oil) meets all the requirements for your vehicle. J SAE 5W-30 PREFERRED 0 SH or SG "SH" or "SG" must be on the oil container, eithet by itself or combined with other quality designations, such as "SWCD," "SH, SG, CD," "SGKD," etc. These letters show American Petroleum Institute (API) levels of quality. COLD WEATHER 0 0 SAE 5W-30 Energy Conserving I1 Oils with these words on the container will help you save fuel. Engine Oil Additives: Don't add anything to your Your oil. Pontiac dealer is ready to advise if you think something shouldbe added. GRADE OILS ARE AVAILABLE, SAE 30 GRADE MAY BE USED AT TEMPERATURES ABOVE 40 DEGREES F (4 DEGREES C). Dd NO? USE SAE 1OW-40, SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED. I NllTHER SAE SW-30 NOR SAE 1OW-30 F ...194