Fluid · Manual Transmission
Manual Transmission
for 1990 GMC C1500 5.7L V8 · 4WD
Fluid Type
Synchromesh or 75W-90 GL-4
Spec: GM Part 12345349
Capacity
3.5qt
3.31 L
Drain & Refill
3.5 qt
3.31 L
Change Interval
100,000 mi
160,900 km
Notes
NV3500 or similar 5-speed manual. GM Synchromesh preferred for easier shifting
Other fluid systems on this vehicle
A/C Refrigerant
A/C Refrigerant
Brake Fluid
1 qt
Brake Fluid
1 qt
Coolant
16 qt
Coolant
16 qt
Engine Oil
5 qt
Engine Oil
5 qt
Power Steering
1.5 qt
Power Steering
1.5 qt
Rear Differential
4.5 qt
Rear Differential
4.5 qt
Transfer Case
2.2 qt
Automatic Transmission
12 qt
Automatic Transmission
12 qt
Washer Fluid
4 qt
Washer Fluid
4 qt