The Buick Rainier's gas tank is 22.0 gallons.
Larger sized gas tanks are advantageous because you don't need to go to the gas station as often. Also, you can take advantage of days when gas prices are discounted and fill up your vehicle with a larger quantity of gas.
Scroll down for the gas tank size tables for your year and trim.
| Year | Trim | Engine | Gallons | Liters |
|---|---|---|---|---|
| 2007 | I6 SUV 4D CXL | VORTEC 4.2L | 22.0 | 83.3 |
| 2007 | I6 SUV 4D CXL AWD | VORTEC 4.2L | 22.0 | 83.3 |
| 2007 | V8 SUV 4D CXL | VORTEC 4.2L | 22.0 | 83.3 |
| 2007 | V8 SUV 4D CXL AWD | VORTEC 4.2L | 22.0 | 83.3 |
| Year | Trim | Engine | Gallons | Liters |
|---|---|---|---|---|
| 2006 | I6 SUV 4D CXL | Not Available | 22.0 | 83.3 |
| 2006 | I6 SUV 4D CXL AWD | Not Available | 22.0 | 83.3 |
| 2006 | V8 SUV 4D CXL | Not Available | 22.0 | 83.3 |
| 2006 | V8 SUV 4D CXL AWD | Not Available | 22.0 | 83.3 |
| 2005 | I6 SUV 4D CXL | Not Available | 22.0 | 83.3 |
| 2005 | I6 SUV 4D CXL AWD | Not Available | 22.0 | 83.3 |
| 2005 | V8 SUV 4D CXL | Not Available | 22.0 | 83.3 |
| 2005 | V8 SUV 4D CXL AWD | Not Available | 22.0 | 83.3 |
| Year | Trim | Engine | Gallons | Liters |
|---|---|---|---|---|
| 2004 | I6 SUV 4D CXL | VORTEC 4200 MFIL | 22.0 | 83.3 |
| 2004 | I6 SUV 4D CXL AWD | VORTEC 4200 MFIL | 22.0 | 83.3 |
| 2004 | V8 SUV 4D CXL | VORTEC 4200 MFIL | 22.0 | 83.3 |
| 2004 | V8 SUV 4D CXL AWD | VORTEC 4200 MFIL | 22.0 | 83.3 |
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Also, you can consult the vehicle's owner's manual.