2008 Buick LaCrosse Oil Type & Capacity
The 2008 Buick LaCrosse oil type depends on the engine: the CX takes 5W-30 (4.5 quarts qt with filter); the CXL takes 5W-30 (4.5 quarts qt with filter); the CXS takes 5W-30 (5.5 quarts qt with filter); the Super takes 5W-30 (6.0 quarts qt with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- CX: 5W-30, 4.5 quarts with filter
- CXL: 5W-30, 4.5 quarts with filter
- CXS: 5W-30, 5.5 quarts with filter
- Super: 5W-30, 6.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| CX — 3.8L Eng | API - SAE 5W-30 | 4.50 QTS. | 4.00 QTS. | Use oil that meets GM Standard GM6094M. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling. |
| CXL — 3.8L Eng | API - SAE 5W-30 | 4.50 QTS. | 4.00 QTS. | Use oil that meets GM Standard GM6094M. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling. |
| CXS — 3.6L Eng | API - SAE 5W-30 | 5.50 QTS. | 5.20 QTS. | Use oil that meets GM Standard GM6094M. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling. |
| Super — 5.3L Eng | API - SAE 5W-30 | 6.00 QTS. | 5.50 QTS. | Use oil that meets GM Standard GM6094M. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling. |
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More factory specs & repair guides for your LaCrosse
🛞 2008 Buick LaCrosse Tire Size & Pressure →🌧️ 2008 Buick LaCrosse Wiper Blade Sizes →💡 2008 Buick LaCrosse Light Bulb Sizes →📖 2008 Buick LaCrosse Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
11.7 quarts (11.07 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 2008 Buick LaCrosse take?
It depends on the engine: CX uses 5W-30; CXL uses 5W-30; CXS uses 5W-30; Super uses 5W-30.
What is the oil capacity of a 2008 Buick LaCrosse?
Oil capacity depends on the engine: CX holds 4.5 quarts with filter; CXL holds 4.5 quarts with filter; CXS holds 5.5 quarts with filter; Super holds 6.0 quarts with filter.
How often should I change the oil in my 2008 Buick LaCrosse?
Most 2008 Buick LaCrosse 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 — Buick recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 2008 Buick LaCrosse?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2008 Buick LaCrosse. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.