1998 Cadillac Catera Oil Type & Capacity: 5W-30 (6.0 quarts)
The 1998 Cadillac Catera 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 |
|---|---|---|---|---|
| Catera | API - SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 6.00 QTS. | — | — |
More factory specs & repair guides for your Catera
🛞 1998 Cadillac Catera Tire Size & Pressure →🌧️ 1998 Cadillac Catera Wiper Blade Sizes →💡 1998 Cadillac Catera Light Bulb Sizes →📖 1998 Cadillac Catera Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
10.57 quarts (10 L) — 50/50 mixture of DEX-COOL and clean water (preferably distilled)
Frequently asked questions
What type of oil does a 1998 Cadillac Catera take?
The 1998 Cadillac Catera takes 5W-30 motor oil (API - SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F)), per the factory service manual.
What is the oil capacity of a 1998 Cadillac Catera?
The 1998 Cadillac Catera oil capacity is 6.0 quarts with a filter change.
How often should I change the oil in my 1998 Cadillac Catera?
Most 1998 Cadillac Catera 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 — Cadillac recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 1998 Cadillac Catera?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1998 Cadillac Catera. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.