1988 Jeep Wrangler Oil Type & Capacity
The 1988 Jeep Wrangler oil type depends on the engine: the Base, 2.5 H takes 5W-30 (4.0 quarts with filter); the Base, 4.2 C, Automatic takes 5W-30 (5.0 quarts with filter); the Base, 4.2 C, Standard takes 5W-30 (5.0 quarts with filter); the Laredo, 2.5 H takes 5W-30 (4.0 quarts with filter); the Laredo, 4.2 C, Automatic takes 5W-30 (5.0 quarts with filter); the Laredo, 4.2 C, Standard takes 5W-30 (5.0 quarts with filter); the S, 2.5 H takes 5W-30 (4.0 quarts with filter); the S, 4.2 C, Automatic takes 5W-30 (5.0 quarts with filter); the S, 4.2 C, Standard takes 5W-30 (5.0 quarts with filter); the Sahara, 2.5 H takes 5W-30 (4.0 quarts with filter); the Sahara, 4.2 C, Automatic takes 5W-30 (5.0 quarts with filter); the Sahara, 4.2 C, Standard takes 5W-30 (5.0 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- Base, 2.5 H: 5W-30, 4.0 quarts with filter
- Base, 4.2 C, Automatic: 5W-30, 5.0 quarts with filter
- Base, 4.2 C, Standard: 5W-30, 5.0 quarts with filter
- Laredo, 2.5 H: 5W-30, 4.0 quarts with filter
- Laredo, 4.2 C, Automatic: 5W-30, 5.0 quarts with filter
- Laredo, 4.2 C, Standard: 5W-30, 5.0 quarts with filter
- S, 2.5 H: 5W-30, 4.0 quarts with filter
- S, 4.2 C, Automatic: 5W-30, 5.0 quarts with filter
- S, 4.2 C, Standard: 5W-30, 5.0 quarts with filter
- Sahara, 2.5 H: 5W-30, 4.0 quarts with filter
- Sahara, 4.2 C, Automatic: 5W-30, 5.0 quarts with filter
- Sahara, 4.2 C, Standard: 5W-30, 5.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Base, 2.5 H — 2.5L 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) | 4.00 QTS. | — | — |
| Base, 4.2 C, Automatic — 4.2L 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. | — | — |
| Base, 4.2 C, Standard — 4.2L 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. | — | — |
| Laredo, 2.5 H — 2.5L 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) | 4.00 QTS. | — | — |
| Laredo, 4.2 C, Automatic — 4.2L 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. | — | — |
| Laredo, 4.2 C, Standard — 4.2L 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. | — | — |
| S, 2.5 H — 2.5L 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) | 4.00 QTS. | — | — |
| S, 4.2 C, Automatic — 4.2L 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. | — | — |
| S, 4.2 C, Standard — 4.2L 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. | — | — |
| Sahara, 2.5 H — 2.5L 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) | 4.00 QTS. | — | — |
| Sahara, 4.2 C, Automatic — 4.2L 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. | — | — |
| Sahara, 4.2 C, Standard — 4.2L 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. | — | — |
Buy the right oil
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More specs & repair guides for your Wrangler
1988 Jeep Wrangler factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
9.0 quarts (8.51 L) — 50/50 mixture of AMC/JEEP/RENAULT All Season Coolant and distilled water. Includes: 1 qt. in the engine coolant recovery tank.
Frequently asked questions
What type of oil does a 1988 Jeep Wrangler take?
It depends on the engine: Base, 2.5 H uses 5W-30; Base, 4.2 C, Automatic uses 5W-30; Base, 4.2 C, Standard uses 5W-30; Laredo, 2.5 H uses 5W-30; Laredo, 4.2 C, Automatic uses 5W-30; Laredo, 4.2 C, Standard uses 5W-30; S, 2.5 H uses 5W-30; S, 4.2 C, Automatic uses 5W-30; S, 4.2 C, Standard uses 5W-30; Sahara, 2.5 H uses 5W-30; Sahara, 4.2 C, Automatic uses 5W-30; Sahara, 4.2 C, Standard uses 5W-30.
How much oil does a 1988 Jeep Wrangler take?
Capacity depends on the engine: Base, 2.5 H holds 4.0 quarts with filter; Base, 4.2 C, Automatic holds 5.0 quarts with filter; Base, 4.2 C, Standard holds 5.0 quarts with filter; Laredo, 2.5 H holds 4.0 quarts with filter; Laredo, 4.2 C, Automatic holds 5.0 quarts with filter; Laredo, 4.2 C, Standard holds 5.0 quarts with filter; S, 2.5 H holds 4.0 quarts with filter; S, 4.2 C, Automatic holds 5.0 quarts with filter; S, 4.2 C, Standard holds 5.0 quarts with filter; Sahara, 2.5 H holds 4.0 quarts with filter; Sahara, 4.2 C, Automatic holds 5.0 quarts with filter; Sahara, 4.2 C, Standard holds 5.0 quarts with filter.
Can I use synthetic oil in my 1988 Jeep Wrangler?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1988 Jeep Wrangler. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.