Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1983 J20.
The 1983 Jeep J20 takes 4 qt w/ filter of 20W-40 engine oil.
Fluid capacities, tune-up values and fuel economy at a glance.
Capacities, torques and tune-up values from the factory service manual.
This engine holds 4 qt w/ filter of 20W-40 / 20W-50 / 10W-30 API engine oil, Front: 75W- in the differential.
| Differential Gear Oil | Front: 75W- |
| Differential Gear Oil Capacity | 2.5 Pints |
| Differential Gear Oil | Front: 75W- |
| Differential Gear Oil Capacity | 6 Pints |
| Engine Coolant | ETHYLENE GLYCOL |
| Engine Oil | 20W-40 · 20W-50 · API · 10W-30 · 10W-40 · 5W-30 |
| Engine Oil Capacity | 4 qt w/ filter |
| Power Steering Fluid | MS-5931 |
Condensed service procedures for routine maintenance. Procedures that require dealer diagnostic equipment are identified and summarized only.
| Tool required | DRBIII scan tool (dealer / locksmith) |
| Why | Transmitter codes are written into the receiver in the passenger door module |
| When needed | After Sentry Key Immobilizer Module (SKIM) replacement |
| Tool required | DRBIII scan tool |
| Also required | The vehicle's four-digit PIN code |
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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4 qt w/ filter of ABOVE 30 degrees F: 20W-40 OR 20W-50 API, ABOVE 0 degrees F: 10W-30 OR 10W-40 API, BELOW 60 degrees F: 5W-30 API, per the factory manual.