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.
1990 Oldsmobile Custom CruiserFACTORY OEM SERVICE PROCEDURE
Quick Lookups: Fluids
| FLUID CAPACITIES | |||||||
|---|---|---|---|---|---|---|---|
| Fluid Type | Application | Standard | Metric | Fluid Spec | Note | S/H | |
| Air Cond Refrigerant | 2.75 LBS. | 1.24 KG | R-12 | S | |||
| Automatic Transmission Fluid | Overhaul | 11.00 QTS. | 10.4 L | Automatic Transmission Fluid DEXRON VI | Refer to TSB No. 04-07-30-037C, Date of Issue: April 11, 2007. | S | |
| Automatic Transmission Fluid | Pan Removal and Replacement | 3.50 QTS. | 3.31 L | Automatic Transmission Fluid DEXRON VI | Refer to TSB No. 04-07-30-037C, Date of Issue: April 11, 2007. | S | |
| Brake Fluid | N/A | N/A | DOT 3 Brake Fluid | S | |||
| Engine Coolant | Standard/Regular | 15.25 QTS. | 14.43 L | 50/50 mixture of Ethylene Glycol Base Antifreeze and water | GM Specification 1825-M. | S | |
| Engine Coolant | w/Heavy Duty Cooling | 16.25 QTS. | 15.37 L | 50/50 mixture of Ethylene Glycol Base Antifreeze and water | GM Specification 1825-M. | S | |
| Engine Coolant | w/Trailer Towing Package | 16.00 QTS. | 15.14 L | 50/50 mixture of Ethylene Glycol Base Antifreeze and water | GM Specification 1825-M. | S | |
| Engine Oil | 4.00 QTS. | 3.78 L | API - SAE 5W-30 | S | |||
| Fuel Tank | 22.00 GALS. | 83.27 L | S | ||||
| Power Steering Fluid | Complete System | 2.25 PTS. | 1.06 L | GM Power Steering Fluid | GM Part No. 1050017. | S | |
| Power Steering Fluid | w/Pump | 1.00 PTS. | 0.47 L | GM Power Steering Fluid | GM Part No. 1050017. | S | |
| Windshield Washer Fluid | N/A | N/A | Optikleen Windshield Washer Fluid | Follow the Manufacturer's Instructions for the mixture ratio. | S | ||
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.
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