What's the chevy colorado def capacity?

Depending on your specific model year, the diesel exhaust fluid capacity of the Chevrolet Colorado may vary slightly, but typically comes in juSTShy of 5 gallons. Most owners report adding 2.5 gallons at a time, topping off as indicated by the lifetime gauge. While you won't want to run it the whole way down to empty, there's no reason you'll need to also keep your DEF tank full. It seems that the truck ranges quite a bit on how far it goes on a full tank -- some drivers report as few aS3,500 miles, while others note upwards of 5,000. If you're going to be making a cross country trek, it might be wise to keep some in tow. Otherwise, for everyday driving, you should be more than fine topping off at regular intervals.