1985 Jeep Pickup Oil Type & Capacity
The 1985 Jeep Pickup oil type depends on the engine: the J10, 4.2 C, Automatic takes 5W-30 (6.0 quarts with filter); the J10, 4.2 C, Standard, T177 takes 5W-30 (6.0 quarts with filter); the J10, 4.2 C, Standard, T18A takes 5W-30 (6.0 quarts with filter); the J10, 5.9 N takes 5W-30 (5.0 quarts with filter); the J20 takes 5W-30 (5.0 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- J10, 4.2 C, Automatic: 5W-30, 6.0 quarts with filter
- J10, 4.2 C, Standard, T177: 5W-30, 6.0 quarts with filter
- J10, 4.2 C, Standard, T18A: 5W-30, 6.0 quarts with filter
- J10, 5.9 N: 5W-30, 5.0 quarts with filter
- J20: 5W-30, 5.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| J10, 4.2 C, Automatic — J10 | API - SF, SAE 5W-30 (Below 60Deg.F), 10W-30 or 10W-40 (Above 0Deg.F), 20W-40 or 20W-50 (Above 30Deg.F) | 6.00 QTS. | — | — |
| J10, 4.2 C, Standard, T177 — J10 | API - SF, SAE 5W-30 (Below 60Deg.F), 10W-30 or 10W-40 (Above 0Deg.F), 20W-40 or 20W-50 (Above 30Deg.F) | 6.00 QTS. | — | — |
| J10, 4.2 C, Standard, T18A — J10 | API - SF, SAE 5W-30 (Below 60Deg.F), 10W-30 or 10W-40 (Above 0Deg.F), 20W-40 or 20W-50 (Above 30Deg.F) | 6.00 QTS. | — | — |
| J10, 5.9 N — J10,5.9L Eng | API - SF, SAE 5W-30 (Below 60Deg.F), 10W-30 or 10W-40 (Above 0Deg.F), 20W-40 or 20W-50 (Above 30Deg.F) | 5.00 QTS. | — | — |
| J10, 5.9 N — J10 | API - SF, SAE 5W-30 (Below 60Deg.F), 10W-30 or 10W-40 (Above 0Deg.F), 20W-40 or 20W-50 (Above 30Deg.F) | 6.00 QTS. | — | — |
| J20 — J20 | API - SF, SAE 5W-30 (Below 60Deg.F), 10W-30 or 10W-40 (Above 0Deg.F), 20W-40 or 20W-50 (Above 30Deg.F) | 5.00 QTS. | — | — |
Buy the right oil
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More specs & repair guides for your Pickup
1985 Jeep Pickup factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
10.5 quarts (9.93 L) — 50/50 mixture of Ethylene Glycol Base Antifreeze and water
Frequently asked questions
What type of oil does a 1985 Jeep Pickup take?
It depends on the engine: J10, 4.2 C, Automatic uses 5W-30; J10, 4.2 C, Standard, T177 uses 5W-30; J10, 4.2 C, Standard, T18A uses 5W-30; J10, 5.9 N uses 5W-30; J20 uses 5W-30.
How much oil does a 1985 Jeep Pickup take?
Capacity depends on the engine: J10, 4.2 C, Automatic holds 6.0 quarts with filter; J10, 4.2 C, Standard, T177 holds 6.0 quarts with filter; J10, 4.2 C, Standard, T18A holds 6.0 quarts with filter; J10, 5.9 N holds 5.0 quarts with filter; J20 holds 5.0 quarts with filter.
Can I use synthetic oil in my 1985 Jeep Pickup?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1985 Jeep Pickup. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.