Most Silverado 1500 pickups use a 24-gallon fuel tank, with an optional 36-gallon Extended Range tank available on select configurations. The exact capacity depends on the cab style, bed length, and engine, so check your vehicle’s window sticker or owner’s manual for the precise figure.
Tank sizes by configuration
The Silverado’s fuel capacity isn’t the same for every build. GM typically offers two main tank sizes across many model years: a standard 24-gallon tank and a 36-gallon Extended Range tank on certain configurations. Availability depends on the cab/bed combination and engine choice.
- 24 gallons (standard): Most regular cab and crew cab models with standard bed use this capacity.
- 36 gallons (Extended Range): Available on select crew cab configurations, typically paired with longer beds and specific engine choices.
The exact capacity for a given truck should be confirmed on the window sticker or in the owner’s manual, as options and specifications can change by year and trim.
How to confirm your exact capacity
To verify the tank size for your specific Silverado 1500, use these sources: the original window label on the driver’s door jamb, the vehicle’s owner’s manual, GM’s official website or dealer information for your exact VIN. If you’re buying used, the VIN decode and window sticker (if available) will reveal the correct tank size.
Summary
In short, the Chevrolet Silverado 1500 typically comes with a 24-gallon fuel tank, with a 36-gallon Extended Range option on select configurations. Always confirm the exact capacity for your specific truck to know your driving range between fill-ups.


