Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1992 Buick Roadmaster BaseFACTORY OEM SERVICE PROCEDURE
Fluid Capacities
FLUID CAPACITIES
| Application | (1) Quantity Qts. (L) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Crankcase (2) | |||||||||||||
| 4.9L | 5.0 (4.7) | ||||||||||||
| 5.0L | 4.0 (3.8) | ||||||||||||
| 5.7L | |||||||||||||
| All Except Corvette ZR1 With LT5 | 4.0 (3.8) | ||||||||||||
| Corvette ZR1 With LT5 | 7.6 (7.2) | ||||||||||||
| Cooling System (Includes Heater) | |||||||||||||
| 4.9L | 12.0 (11.4) | ||||||||||||
| 5.0L | 18.0 (17.0) | ||||||||||||
| 5.7L | |||||||||||||
| VINs P & 8 | 17.0 (16.0) | ||||||||||||
| VINs J & 7 | 15.0 (14.2) | ||||||||||||
| Automatic Transaxle/Transmission (3)(4) | |||||||||||||
| 4.9L | 6.0 (5.7) | ||||||||||||
| 5.0L & 5.7L | 5.0 (4.7) | ||||||||||||
| Manual Transaxle/Transmission | |||||||||||||
| 5.0L | (4) 3.0 (2.8) | ||||||||||||
| 5.7L | |||||||||||||
| VIN P | (5) 2.2 (2.1) | ||||||||||||
| VIN 8 | (4) 3.0 (2.8) | ||||||||||||
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Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.