Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1984 Impala.
The 1984 Chevrolet Impala, as presented in the reference overview, calls for four quarts of engine oil with acceptable viscosities of 20W‑20, 20W‑40 or 20W‑50. Complaint records spanning 1991‑2020 reveal the lowest incidence in 1997, with just one reported issue, and the highest in 2004, logging 1,071 complaints. This pattern situates the 1984 model within the broader reliability trajectory of the Impala nameplate.
Fluid capacities, tune-up values and fuel economy at a glance.
Engine, drivetrain, dimensions and economy.
| Overall length | 213 in |
| Overall width | 75.6 in |
| Overall height | 56.3 in |
| Wheelbase | 115.7 in |
| Curb weight | 3488 lb |
| Weight distribution (front / rear) | 55/45 |
0–60 mph, quarter-mile, horsepower and torque from independent road tests.
Independent road tests for the Impala of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.
| Year | Trim / engine | 0–60 | ¼ mile | HP | Drivetrain |
|---|---|---|---|---|---|
| 1994 | SS V8 Sedan 5.7L V8 | 7.10 sec | 15.40 sec | 260 hp | RWD |
Capacities, torques and tune-up values from the factory service manual.
This engine holds 4 qt of 20W-20 / 20W-40 / 20W-50 engine oil, 80W-90 · GL-5 in the differential, DOT 3 brake fluid.
| Brake Fluid | DOT 3 |
| Differential Gear Oil | 80W-90 · GL-5 |
| Differential Gear Oil Capacity | 4.3 qt |
| Engine Coolant | ETHYLENE GLYCOL |
| Engine Oil | 20W-20 · 20W-40 · 20W-50 · 15W-40 · 5W-30 |
| Engine Oil Capacity | 4 qt |
| Engine Oil | 20W-20 · 20W-40 · 20W-50 · 15W-40 · 5W-30 |
| Engine Oil Capacity | 4 qt |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
No recall campaigns on record with NHTSA for this vehicle as of the last data refresh.
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.
4 qt of ABOVE 40 degrees F 30, ABOVE 20 degrees F: 20W-20, 20W-40, 20W-50, ABOVE 10 degrees F: 15W-40, BELOW 60 degrees F: 5W-30, per the factory manual.
NHTSA lists 0 recall campaign(s) for this model year. Check your specific vehicle by VIN.