Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1988 P30.
The 1988 Chevrolet P30 features a 4-speed automatic transmission and an EPA fuel economy rating of 11/17/13 mpg. The engine utilizes 5 quarts of oil with a viscosity of 20W-20, 20W-40, or 20W-50. This model year recorded three recalls and a single owner complaint regarding seat belts, positioning it ahead of a 1990-1999 complaint history that peaked at 10 reports in 1994 and reached a low of one in 1991.
Fluid capacities, tune-up values and fuel economy at a glance.
Engine, drivetrain, dimensions and economy.
| Transmission | Automatic 4-spd |
| EPA city / highway / combined | 11 / 17 / 13 mpg |
| Drivetrain | Rear-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 / 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 | 27.0 qt |
| Engine Coolant | ETHYLENE GLYCOL |
| Engine Oil | 20W-20 · 20W-40 · 20W-50 · 15W-40 · 5W-30 |
| Engine Oil Capacity | 5 qt |
| Engine Oil | 20W-20 · 20W-40 · 20W-50 · 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 1988 Chevrolet P30 falls just before the federal record begins in 1990, but the trend from the early 1990s offers context: complaints were low from 1990–1993 (1–4 annually), spiked to 10 in 1994, then dropped to zero from 1995–1997 before another spike in 1998. This pattern suggests the 1988 model year, being two years older than the 1990 data start, likely predates the major reliability issues that emerged mid-generation—particularly the 1994 complaint spike. The target year shows only one seat belt complaint, with zero crash or fire complaints, indicating no acute safety concerns for that model. Recalls remained consistent (1–3 per year) throughout the generation, while TSBs increased over time, suggesting the manufacturer continued addressing issues through the late 1990s. The concrete takeaway: the 1988 P30 appears to sit in a relatively stable portion of this generation's reliability arc, making it a reasonable candidate compared to the problem years of 1994 and 1998.
All 1 complaints on record, top 1 components.
Source: NHTSA Office of Defects Investigation complaint database.
Showing 2 of 3 campaigns on record for this vehicle.
UNANTICIPATED HEAT IN THE TRANSMISSION CAN FORCE THE TRANSMISSION FLUID OUT OF THE VENT TUBE. Remedy: INSTALL A LONGER TRANSMISSION VENT HOSE ROUTED TO THE LEFT SIDE OF THE ENGINE COMPARTMENT OF THE VEHICLE.
TRUCKS MAY HAVE CRACKED OR BROKEN DOOR STRIKER NUTS, WHICH DO NOT CONFORM TO FMVSS 206. Remedy: REPLACE EXISTING DOOR STRIKER NUTS.
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, 20W-40, 20W-50, ABOVE 10 degrees F: 15W-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.
EPA figures are 11 city / 17 highway / 13 combined mpg.