Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1983 Omega.
The 1983 Oldsmobile Omega survives in this reference set primarily as a maintenance-data point rather than a complete mechanical profile. Its listed engine oil capacity is 3 quarts, with recommended viscosities spanning 20W-20, 20W-40, and 20W-50. Because the source provides no body style, platform, engine, or reliability assessment for this model year, the entry is best treated as a service-specification anchor for researchers, not as evidence for broader conclusions about how the Omega was engineered or how it aged.
Fluid capacities, tune-up values and fuel economy at a glance.
Engine, drivetrain, dimensions and economy.
| Overall length | 182.7 in |
| Overall width | 69.7 in |
| Overall height | 54.7 in |
| Wheelbase | 104.7 in |
| Curb weight | 2520 lb |
Capacities, torques and tune-up values from the factory service manual.
This engine holds 3 qt of 20W-20 / 20W-40 / 20W-50 engine oil, DOT 3 brake fluid.
| Brake Fluid | DOT 3 |
| Engine Coolant | ETHYLENE GLYCOL |
| Engine Oil | 20W-20 · 20W-40 · 20W-50 · 15W-40 · 10W-30 · 10W-40 · 5W-30 |
| Engine Oil Capacity | 3 qt |
| Engine Oil | 20W-20 · 20W-40 · 20W-50 · 15W-40 · 10W-30 · 10W-40 · 5W-30 |
| Engine Oil Capacity | 4 qt |
| Power Steering Fluid | USE GM PART NO. 1050017 OR EQUIVALENT |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
Showing 1 of 1 campaigns on record for this vehicle.
THE BRAKE PROPORTIONER VALVES MAY BREAK AND SEPARATE FROM THE MASTER CYLINDER. THIS WOULD ALLOW BRAKE FLUID TO LEAK AND WOULD RESULT IN A PARTIAL LOSS OF THE BRAKE SYSTEM. Remedy: THE DEALER WILL INSPECT AND, IF NECESSARY, REPLACE ALL SUSPECT VALVES.
The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.
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Cross-vehicle references for the kinds of data on this page.
3 qt of ABOVE 40 degrees F: 30, ABOVE 20 degrees F: 20W-20, 20W-40, 20W-50, ABOVE 10 degrees F: 15W-40, ABOVE 0 degrees F: 10W-30 OR 10W-40, BELOW 60 degrees F: 5W-30, per the factory manual.
NHTSA lists 1 recall campaign(s) for this model year. Check your specific vehicle by VIN.