Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1984 P30.
The 1984 Chevrolet P30 used an automatic 4-speed transmission, called for 5 quarts of oil in 20W-20, 15W-40, or 5W-30 viscosity grades, and posted EPA ratings of 10/12/11 mpg. Reliability records for this model year show one owner complaint, with Engine & Engine Cooling listed as the top complaint area, and four recalls. Because the broader P30 complaint history is tracked only from 1990 to 1999—peaking at ten complaints in 1994 and hitting a low of one in 1991—the 1984 model sits outside that dataset, so researchers should treat its single complaint and four recalls as the only available reliability signals for this year.
Fluid capacities, tune-up values and fuel economy at a glance.
Engine, drivetrain, dimensions and economy.
| Transmission | Automatic 4-spd |
| EPA city / highway / combined | 10 / 12 / 11 mpg |
| Drivetrain | 2-Wheel Drive |
| Recommended fuel | Regular Gasoline |
Capacities, torques and tune-up values from the factory service manual.
This engine holds 5 qt of 20W-20 / 15W-40 / 5W-30 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 | 27.0 qt |
| Engine Coolant | ETHYLENE GLYCOL |
| Engine Oil | 20W-20 · 15W-40 · 5W-30 |
| Engine Oil Capacity | 5 qt |
| Engine Oil | 20W-20 · 15W-40 · 5W-30 |
| Engine Oil Capacity | 6 qt |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
The federal record supplied contains no entries for 1984, with the earliest year listed being 1990, so there are no comparable complaint, recall, investigation, or TSB numbers for the target year or its immediate neighbors. Consequently, a year‑by‑year trend across the generation cannot be derived from the provided data. For 1984 the available specifics show zero crash complaints, one fire complaint, and a single engine‑and‑engine‑cooling complaint as the top area. Without comparative figures from preceding or following model years, it is impossible to determine whether 1984 exhibits a higher or lower incidence of issues relative to the generation. Based solely on the limited 1984 data—minimal reported problems—the year appears to have few documented federal complaints, but the absence of broader trend information precludes a definitive endorsement.
All 1 complaints on record, top 1 components.
Source: NHTSA Office of Defects Investigation complaint database.
Showing 2 of 4 campaigns on record for this vehicle.
CERTAIN HONEYWELL FRAM RACING BRAND HP4 AND HP8 OIL FILTERS THAT WERE MANUFACTURED FROM MAY 25, 2006, THROUGH SEPTEMBER 14, 2007, AND SOLD FOR USE AS REPLACEMENT EQUIPMENT FOR VEHICLES LIST ABOVE. THE AFFECTED FILTERS… Remedy: HONEYWELL WILL REPLACE THE AFFECTED OIL FILTERS FREE OF CHARGE. THE RECALL BEGAN DURING NOVEMBER 2007. OWNERS CAN CONTACT FRAM CUSTOMER SERVICE TOLL-FREE AT 1-800-890-2075.
TRUCKS FAILED TO COMPLY WITH REQUIREMENTS OF FMVSS 301, FUEL SYSTEM INTEGRITY, DURING A 30 MPH FRONTAL BARRIER TEST. Remedy: INSTALL AN ADDITIONAL SHIELD TO THE FRONT OF THE ORIGINAL SHIELD TO PROTECT THE FUEL TANK.
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.
5 qt of ABOVE 40 degrees F: 30, ABOVE 20 degrees F: 20W-20, ABOVE 10 degrees F: 15W-40, BELOW 60 degrees F: 5W-30, per the factory manual.
NHTSA lists 4 recall campaign(s) for this model year. Check your specific vehicle by VIN.
EPA figures are 10 city / 12 highway / 11 combined mpg.