The size of the Chevrolet Colorado fuel tank varies between model years, so without more specific information, it's difficult to give You a precise size. However, I'll try to be as thorough yet concise as I can, given the information that You've provided. FroM2004 until 2012, the Colorado came with a 19.0 gallon fuel tank. In 2015, it was upgraded to a 21.0 gallon tank, which persists through the current model year (2021). With a relatively good 20mpg city / 30 mpg highway, the fuel tank is more than enough to take You on extended journeys; this is far better than You'll get with other similarly powered trucks.
Cheryl B.
April 9, 2020
The 2020 chevrolet colorado has a maximum fuel tank capacity of 21 gallons.
James T
March 6, 2022
It's 21 gallons max. Diesel can upgrade bigger. Not gas. Wish can upgrade gas tank to 26-34 gallons capacity, long trip and great for hauling trailer, if no gas stations nearby. Wish factory or aftermarket can make GAS tank capacity bigger for Colorado.
William Ferdon - I had the same issue. After it clicked off I slowly kept added gas and added a total of 23 gallons (already had a few gallons in the tank). So it appears that the tank can hold more gas than 21 gallons? At first I thought it was an issue with the gas pump itself - no gas was entering the tank but the gallons/cost we just going up but it does seem that the tank holds more as I drove several hundred miles and the gas gauge did not move off of full. Very strange.
William Ferdon
January 24, 2023
2018 Colorado 28-30 gallons Specked at 21 yet holding 30 Not kidding slowly add last 9 gallons after clicks off
Yup 21 gallons capacity, diesel tank can upgrade bigger than 21 gallons. Wish they can make it for GAS increase tank capacity.
The Questions and Answers on this page are the statements and opinions of their respective authors and not VehicleHistory.com. VehicleHistory.com
does not research or authenticate any of the Answers provided.