1990 Dodge Monaco Oil Type & Capacity
The 1990 Dodge Monaco takes 5W-30 motor oil — 6.0 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-30 — 6.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| ES | API - SAE 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F) | 6.00 QTS. | — | — |
| LE | API - SAE 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F) | 6.00 QTS. | — | — |
Buy the right oil
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More specs & repair guides for your Monaco
1990 Dodge Monaco factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
8.7 quarts (8.23 L) — 50/50 mixture of water and Ethylene-Glycol Base Antifreeze, such as MOPAR, PRESTON II, PEAK, or antifreeze containing the Alugard 340-2 inhibitor system.
Frequently asked questions
What type of oil does a 1990 Dodge Monaco take?
The 1990 Dodge Monaco takes 5W-30 motor oil (API - SAE 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F)), per the factory service manual.
How much oil does a 1990 Dodge Monaco take?
The 1990 Dodge Monaco holds 6.0 quarts with a filter change.
Can I use synthetic oil in my 1990 Dodge Monaco?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1990 Dodge Monaco. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.