1994 Cadillac Seville Owner's Manual - Page 270

You should also use properviscosity oil for your vehicle,as shown in the the following chart: RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST SAE VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE. HOT WEATHER r "F +IO0 . +EO. F I Irl - +38 - +27 - +4 --7 LOOK FOR ONE OF THESE LABELS +60 - - +16 - +40. +20. 0- - -18 SAE 1OW-30 PREFERRED SAE 5W-30 IF NEITHER SAE 5W-30 NORSAE 1OW-30 GRADE OILS AREAVAILABLE,SAE 30 GRADE MAY BEUSEDAT TEMPERATURES ABOVE 40 DEGREES F (4 OEGREES C). DO NOTUSESAE 1OW-40, SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED COLD WEATHER As shown inthe chart, S A E 1OW-30 is bestfor your vehicle. However, you can useS A E 5W-30 if it's goingto be colder than 60°F (16OC) before your next oil change. When it's very cold, you should useA E S 5W-30. These numbers on anoil container show its viscosity, thickness. or Do not use other viscosity oils, such asS A E 1OW-40 or S A E 20W-50. 257