1990 Plymouth Horizon Oil Type & Capacity
The 1990 Plymouth Horizon takes 5W-30 motor oil — 4.5 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-30 — 4.5 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Automatic | API - SAE 5W-30 (Below 100Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| Standard, A523 | API - SAE 5W-30 (Below 100Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| Standard, A525 | API - SAE 5W-30 (Below 100Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| Standard, A543 | API - SAE 5W-30 (Below 100Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| Standard, A568 | API - SAE 5W-30 (Below 100Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
Buy the right oil
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More specs & repair guides for your Horizon
1990 Plymouth Horizon 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) — PRESTONE II, PEAK, or antifreeze containing the ALUGARD 340-2 inhibitor system. Includes: 1 pt. in coolant reserve tank.
Frequently asked questions
What type of oil does a 1990 Plymouth Horizon take?
The 1990 Plymouth Horizon takes 5W-30 motor oil (API - SAE 5W-30 (Below 100Deg.F), 10W-30 (Above 0Deg.F)), per the factory service manual.
How much oil does a 1990 Plymouth Horizon take?
The 1990 Plymouth Horizon holds 4.5 quarts with a filter change, or 4.0 quarts without changing the filter.
Can I use synthetic oil in my 1990 Plymouth Horizon?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1990 Plymouth Horizon. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.