Engine Oil

TYPE SF, SG (Motor Oil, API Service SF, SG)

1990-93:
Above 68°F (20°C) 40
32° to 86°F (0° to 30°C) 30
Below 23°F (-5°C) 10W
14° to 50°F (-10° to 10°C) 20W-20
Above 14°F (-10°C) 20W-40, 20W-50
Above 5°F (-15°C) 15W-40, 15W-50
-4° to 60° F (-20° to 15°C) 10W-30, 10W-40
Below 14°F (-10°C) 5W-20, 5W-30

1981-89:
68° to 104°F (20° to 40°C) 40
32° to 86°F (0° to 30°C) 30
14° to 86°F (-10° to 30°C) 20W-40, 20W-50
14° to 50°F (-10° to 10°C) 20W-20
5° to 86°F (-15° to 30°C) 15W-40, 15W-50
-4° to 50°F (-20° to 10°C) 10W-30, 10W-40‡
-4° to 23°F (-20° to 5°C) 10W
-22° to 14°F (-30° to -10°C) 5W-20, 5W-30

‡10W-40 not recommended for 1986 models