The Chevrolet Express 1500's gas tank is 31.0 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 |
|---|---|---|---|---|
| 2002 | G1500 1/2 Ton V8 135" | 4.3L | 31.0 | 117.3 |
| 2002 | G1500 1/2 Ton V8 LT 135" | 5.7L | 31.0 | 117.3 |
| 2002 | G2500 3/4 Ton V8 135" | 5.7L | 31.0 | 117.3 |
| 2002 | G2500 3/4 Ton V8 Extended 155" | 5.7L | 31.0 | 117.3 |
| 2002 | G3500 1 Ton V8 135" | 5.7L | 31.0 | 117.3 |
| 2002 | G3500 1 Ton V8 Extended 155" | 5.7L | 31.0 | 117.3 |
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Also, you can consult the vehicle's owner's manual.