1994 Buick Roadmaster Owner's Manual - Page 236

As shown in the chart, SAE 5W-30 is best for your SAE 1OW-30 if it's going vehicle. However, you can use to be0 O F (- 18 C) or above; These numbers on an oil Do container show its viscosity, or thickness. not use other,viscosityoils, suchas SAE 1OW-40 or SAE 2OW-50. O If you cannot find oils with the new "starburst" symbol on the frontof the container, you should look for and use oils containing the following three things: a SH or SG "SH or SG" must be the oil ,container, either on by I itself or combined with other quality designations, such as "SH/CD," "SH, SG, CD," "SG/SD," etc. I NOTICE: These letters show American Petroleum Institute If you use oils that do not have either the (API) levels of quality. "starburst" symbol or an SH or SG API designation, you can cause engine damage a S A E 5W-30 not covered by your warranty. a Energy ConservingI1 Oils with these words on the container will help you GM Goodwrench@ oil Canada, GM Engine Oil) (in save fuel. meets all the requirements for your vehicle. These three things usually included in a doughnut are If you cannot shaped logo (symbol) on most containers. find oils with the "starburst" symbol, should look you for oils with the doughnut shaped symbol, containing the three things noted above. I 234