2005 Cadillac XLR Oil Type & Capacity: 5W-30 (8.0 quarts)
The 2005 Cadillac XLR takes 5W-30 motor oil — 8.0 quarts with a filter change, per the factory service manual.
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| XLR | API - SAE 5W-30 | 8.00 QTS. | — | Use synthetic oil that meets GM Standard GM4718M. DO NOT use other viscosity oils such as SAE 20W-50. |
More factory specs & repair guides for your XLR
🛞 2005 Cadillac XLR Tire Size & Pressure →🌧️ 2005 Cadillac XLR Wiper Blade Sizes →💡 2005 Cadillac XLR Light Bulb Sizes →📖 2005 Cadillac XLR Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
14.8 quarts (14 L) — 50/50 mixture of DEX-COOL and clean drinkable water. All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling.
Frequently asked questions
What type of oil does a 2005 Cadillac XLR take?
The 2005 Cadillac XLR takes 5W-30 motor oil (API - SAE 5W-30), per the factory service manual.
What is the oil capacity of a 2005 Cadillac XLR?
The 2005 Cadillac XLR oil capacity is 8.0 quarts with a filter change.
How often should I change the oil in my 2005 Cadillac XLR?
Most 2005 Cadillac XLR 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 2005 Cadillac XLR?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2005 Cadillac XLR. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.