1993 Buick Century Owner's Manual - Page 231

1993 Buick Century Manual

Page 231 highlights

Look for threethings: SG oil "SG" must be on the container, eitherby itself or combined with other quality designations, such as "SG/CC:'"SG/CD:' "SF, SG, CC:' etc. These letters (API) show American Petroleum Institute levels of quality. Just f it enough to put the level somewhere in the d proper operating range. Push the dipstick all the way back in when you're through. What Kind of Oil to Use 229

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