1988 Cadillac Eldorado Oil Type & Capacity
The 1988 Cadillac Eldorado takes 5W-30 motor oil — 5.5 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-30 — 5.5 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Eldorado — 4.5L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to over 100Deg.F), 15W-40 (10Deg.F to over 100Deg.F), 20W-20 (20Deg.F to over 100Deg.F), 30 (40Deg.F to over 100Deg.F) | — | 5.00 QTS. | — |
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More specs & repair guides for your Eldorado
1988 Cadillac Eldorado factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Frequently asked questions
What type of oil does a 1988 Cadillac Eldorado take?
The 1988 Cadillac Eldorado takes 5W-30 motor oil (SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to over 100Deg.F), 15W-40 (10Deg.F to over 100Deg.F), 20W-20 (20Deg.F to over 100Deg.F), 30 (40Deg.F to over 100Deg.F)), per the factory service manual.
How much oil does a 1988 Cadillac Eldorado take?
The 1988 Cadillac Eldorado holds 5.5 quarts with a filter change, or 5.0 quarts without changing the filter.
Can I use synthetic oil in my 1988 Cadillac Eldorado?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1988 Cadillac Eldorado. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.