Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1984 Firenza.
The 1984 Oldsmobile Firenza specifies a 3‑quart oil capacity with approved viscosities of 20W‑20, 20W‑40, or 20W‑50, reflecting its period‑typical lubrication requirements. Reliability records show just two owner complaints logged, with latches, locks, and linkages emerging as the primary trouble area, while three recalls were issued for the model year. This modest complaint count alongside a handful of recalls suggests a generally dependable entry in the Firenza lineage, though the recall tally warrants attention for researchers assessing long‑term ownership.
Fluid capacities, tune-up values and fuel economy at a glance.
Engine, drivetrain, dimensions and economy.
| Overall length | 176.4 in |
| Overall width | 65 in |
| Overall height | 53.9 in |
| Wheelbase | 101.2 in |
| Curb weight | 2460 lb |
| Weight distribution (front / rear) | 64/36 |
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 | 3 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.
Owner complaints about the 1984 Oldsmobile Firenza dominate in one area — the latches/locks/linkages, 1 of 2 reports (50%), well ahead of the next concern. None of this vehicle's 3 recall campaigns target the latches/locks/linkages, so those reports read as owner-reported wear-and-tear rather than an acknowledged defect. 0 of the reports describe a crash and 0 a fire — a small share of the total, but worth weighing against the latches/locks/linkages pattern above. These are tallies of what owners actually reported to the federal government, not an editorial score — and higher-selling models naturally rack up more reports.
All 2 complaints on record, top 2 components.
Source: NHTSA Office of Defects Investigation complaint database.
Showing 2 of 3 campaigns on record for this vehicle.
CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURED FROM OCTOBER 18… Remedy: HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOBER 18, 2006. OWNERS MAY CONTACT FRAM CUSTOMER SERVICE AT 1-800-890-2075 (OPTION…
THE METAL FLOOR PAN ANCHOR BAR COULD FATIGUE AND BREAK AROUND THE LEFT FRONT OUTER SEAT ADJUSTER STUD OF THE DRIVERS SEAT, ALLOWING THE STUD TO SEPARATE FROM THE FLOOR PAN ANCHOR BAR. Remedy: INSTALL A REINFORCEMENT BRACKET ON THE FLOOR PAN ANCHOR BAR AT THE LEFT FRONT OUTER SEAT ADJUSTER POSITION OF THE DRIVERS SEAT.
The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.
Decode factory build data for a specific vehicle by VIN.
Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.
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 3 recall campaign(s) for this model year. Check your specific vehicle by VIN.