Fluid · Engine Oil
Engine Oil
for 1990 GMC Suburban 7.4L V8 · RWD
Fluid Type
5W-30 conventional or synthetic blend
Spec: API SG
Capacity
7qt
6.62 L
Drain & Refill
7 qt
6.62 L
Change Interval
3,000 mi
4,827 km
Notes
7 quarts with filter. TBI 454 big block.
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Other fluid systems on this vehicle
A/C Refrigerant
A/C Refrigerant
Brake Fluid
1.5 qt
Brake Fluid
1.5 qt
Coolant
28 qt
Coolant
28 qt
Front Differential
3.5 qt
Power Steering
2.5 qt
Power Steering
2.5 qt
Rear Differential
4.2 qt
Rear Differential
4.2 qt
Transfer Case
2.5 qt
Automatic Transmission
12 qt
Automatic Transmission
12 qt
Washer Fluid
1.5 qt
Washer Fluid
1.5 qt