1986 Isuzu I-Mark Oil Type & Capacity
The 1986 Isuzu I-Mark takes 5W-20 motor oil — 3.4 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-20 — 3.4 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Base, 2D Hatchback, Automatic — 1.5L Eng | SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F) | — | 3.00 QTS. | — |
| Base, 2D Hatchback, Standard — 1.5L Eng | SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F) | — | 3.00 QTS. | — |
| Base, 4D Hatchback, Automatic — 1.5L Eng | SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F) | — | 3.00 QTS. | — |
| Base, 4D Hatchback, Standard — 1.5L Eng | SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F) | — | 3.00 QTS. | — |
| S, 2D Hatchback — 1.5L Eng | SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F) | — | 3.00 QTS. | — |
| S, 4D Hatchback — 1.5L Eng | SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F) | — | 3.00 QTS. | — |
Buy the right oil
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More specs & repair guides for your I-Mark
1986 Isuzu I-Mark factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
6.8 quarts (6.43 L) — 50/50 mixture of good quality ethylene-glycol antifreeze & water.
Frequently asked questions
What type of oil does a 1986 Isuzu I-Mark take?
The 1986 Isuzu I-Mark takes 5W-20 motor oil (SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)), per the factory service manual.
How much oil does a 1986 Isuzu I-Mark take?
The 1986 Isuzu I-Mark holds 3.4 quarts with a filter change, or 3.0 quarts without changing the filter.
Can I use synthetic oil in my 1986 Isuzu I-Mark?
Yes. 5W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1986 Isuzu I-Mark. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.