2009 Buick Allure Oil Type & Capacity
The 2009 Buick Allure oil type depends on the engine: the CX takes 5W-30 (4.5 quarts with filter); the CXL takes 5W-30 (4.5 quarts with filter); the Super takes 5W-30 (6.0 quarts 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
- 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. | — | GM Standard GM6094M and displays the American Petroleum Institute Certified for Gasoline Engines starburst symbol. 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. |
| CXL — 3.8L Eng | API- SAE 5W-30 | 4.50 QTS. | — | GM Standard GM6094M and displays the American Petroleum Institute Certified for Gasoline Engines starburst symbol. 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. |
| Super — 5.3L Eng | API- SAE 5W-30 | 6.00 QTS. | — | GM Standard GM6094M and displays the American Petroleum Institute Certified for Gasoline Engines starburst symbol. 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. |
Buy the right oil
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More specs & repair guides for your Allure
2009 Buick Allure factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
11.2 quarts (10.59 L) — 50/50 mixture of DEX-COOL and clean drinkable water
Frequently asked questions
What type of oil does a 2009 Buick Allure take?
It depends on the engine: CX uses 5W-30; CXL uses 5W-30; Super uses 5W-30.
How much oil does a 2009 Buick Allure take?
Capacity depends on the engine: CX holds 4.5 quarts with filter; CXL holds 4.5 quarts with filter; Super holds 6.0 quarts with filter.
Can I use synthetic oil in my 2009 Buick Allure?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2009 Buick Allure. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.