1996 Buick Riviera Owner's Manual - Page 243

What Kind of Oil to Use Oils recommended for your veEcle can be identified by looking for the "Starburst" symbol. This symbol bjr the indicates that the oil has been certified American Do Petroleum Institute(MI). not use anyoil which does'notc m y this Starburst symbol. If you change your you own oil, be sure use -oilthat has the Starburst symbol on the front of the oil container. RECOMMENDED SA€ VISCOSITY GRBDE ENGINE OILS FOR BEST FUEL ECONOMY AND COLD STARTIN/, SELECT THE LOWEST SAE VlSEOSlTY GRAD€ QlL FOR W E EXPECTED TEMPERATURE RANGE. HOT WEATHER I LOOK FOR T I H S SYMBOL 1 "F t 100 "C t 38 f + 80 27 + 60 t 16 + 40 +20. 0. +a -7 - 18 SAE 10W.30 PREFERRED above 0°F oil If you have your oil changed for you, be sure the put into your engine isAmericzin PetroleumInstitute engines. certified for gasoline You should also use theproper viscosity oil for your vehicle, as shown in the following chart: SAE 5W-SO (-lSC) COLD WEATHER DO NOT USE SAE 2QW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED 6-14