1990 Eagle Summit Oil Type & Capacity: 20W-20 (4.2 quarts)
The 1990 Eagle Summit takes 20W-20 motor oil — 4.2 quarts with a filter change, per the factory service manual.
Factory-spec answer
20W-20 — 4.2 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Base, Automatic | API - SF, SAE 20W-20/40/50 (32Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-30/40 (Below -20Deg.F to 60Deg.F) | 4.20 QTS. | — | — |
| Base, Standard | API - SF, SAE 20W-20/40/50 (32Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-30/40 (Below -20Deg.F to 60Deg.F) | 4.20 QTS. | — | — |
| DL, Automatic | API - SF, SAE 20W-20/40/50 (32Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-30/40 (Below -20Deg.F to 60Deg.F) | 4.20 QTS. | — | — |
| DL, Standard | API - SF, SAE 20W-20/40/50 (32Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-30/40 (Below -20Deg.F to 60Deg.F) | 4.20 QTS. | — | — |
| ES, Automatic | API - SF, SAE 20W-20/40/50 (32Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-30/40 (Below -20Deg.F to 60Deg.F) | 4.20 QTS. | — | — |
| ES, Standard | API - SF, SAE 20W-20/40/50 (32Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-30/40 (Below -20Deg.F to 60Deg.F) | 4.20 QTS. | — | — |
| LX, 1.5 X, Automatic | API - SF, SAE 20W-20/40/50 (32Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-30/40 (Below -20Deg.F to 60Deg.F) | 4.20 QTS. | — | — |
| LX, 1.5 X, Standard | API - SF, SAE 20W-20/40/50 (32Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-30/40 (Below -20Deg.F to 60Deg.F) | 4.20 QTS. | — | — |
| LX, 1.6 Y, Automatic | API - SF, SAE 20W-20/40/50 (32Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-30/40 (Below -20Deg.F to 60Deg.F) | 4.20 QTS. | — | — |
| LX, 1.6 Y, Standard | API - SF, SAE 20W-20/40/50 (32Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-30/40 (Below -20Deg.F to 60Deg.F) | 4.20 QTS. | — | — |
More factory specs & repair guides for your Summit
🛞 1990 Eagle Summit Tire Size & Pressure →🌧️ 1990 Eagle Summit Wiper Blade Sizes →💡 1990 Eagle Summit Light Bulb Sizes →📖 1990 Eagle Summit Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
5.3 quarts (5.01 L) — Antifreeze Permanent-Type Coolant/High quality Ethylene Glycol Antifreeze. Includes: .69 qt. in reserve tank.
Frequently asked questions
What type of oil does a 1990 Eagle Summit take?
The 1990 Eagle Summit takes 20W-20 motor oil (API - SF, SAE 20W-20/40/50 (32Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-30/40 (Below -20Deg.F to 60Deg.F)), per the factory service manual.
What is the oil capacity of a 1990 Eagle Summit?
The 1990 Eagle Summit oil capacity is 4.2 quarts with a filter change.
How often should I change the oil in my 1990 Eagle Summit?
Most 1990 Eagle Summit 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 — Eagle recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 1990 Eagle Summit?
Yes. 20W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1990 Eagle Summit. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.