1990 Suzuki Sidekick Oil Type & Capacity: 5W-30 (4.75 quarts)
The 1990 Suzuki Sidekick takes 5W-30 motor oil — 4.75 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-30 — 4.75 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| JLX | API - SAE 5W-30 | 4.75 QTS. | — | — |
| JS | API - SAE 5W-30 | 4.75 QTS. | — | — |
| JX, Automatic | API - SAE 5W-30 | 4.75 QTS. | — | — |
| JX, Standard | API - SAE 5W-30 | 4.75 QTS. | — | — |
More factory specs & repair guides for your Sidekick
🛞 1990 Suzuki Sidekick Tire Size & Pressure →🌧️ 1990 Suzuki Sidekick Wiper Blade Sizes →💡 1990 Suzuki Sidekick Light Bulb Sizes →📖 1990 Suzuki Sidekick Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
11.2 quarts (5.29 L) — 50/50 mixture of Ethylene Glycol Antifreeze and water
Frequently asked questions
What type of oil does a 1990 Suzuki Sidekick take?
The 1990 Suzuki Sidekick takes 5W-30 motor oil (API - SAE 5W-30), per the factory service manual.
What is the oil capacity of a 1990 Suzuki Sidekick?
The 1990 Suzuki Sidekick oil capacity is 4.75 quarts with a filter change.
How often should I change the oil in my 1990 Suzuki Sidekick?
Most 1990 Suzuki Sidekick owners follow a 5,000–7,500 mile interval with conventional oil, or up to 10,000 miles with full synthetic. Always check the oil life monitor if equipped, and consult your owner's manual — Suzuki recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 1990 Suzuki Sidekick?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1990 Suzuki Sidekick. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.