Engine Oil - Recommendations
NO.: 93-I-09DATE: September, 1993
CORP. NO.: 380202
SUBJECT:
Information On Engine Oil Recommendations for 1994 Saturns
TO: Saturn Fixed Operation Managers
Information printed in the 1st edition of the 1994 Saturn Owner's Manuals indicates that only "SH" engine oils with a "Starburst" symbol (shown in illustration) on the oil container are to be used in 1994 Saturn vehicles. Due to the lack of wide spread availability of "SH" engine oil at this time, Saturn vehicles can continue to be serviced with "SG" oil without the Starburst symbol and with the doughnut shaped symbol.
NOTICE:
If you use oils that do not have either the "Starburst" symbol or an API SH or SG designation, you can cause engine damage not covered by your warranty.
"SH" or "SG" must be on the oil container, either by itself or combined with other quality designations, such as "SH/CD," "SH, SG, CD," "SG/CD," etc. These letters show American Petroleum Institute (API) levels of quality. SAE 5W-30 as shown in the following illustration is still best for the vehicle. However, SAE 10W-30 can be used if the temperature is going to be - 18~C (0~F) or above. These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity oils such as SAE 10W-40 or SAE 20W-50.
Oils labeled Energy Conserving II or identified with the Starburst symbol will save fuel when used in a Saturn vehicle.