B Bobby Z New member Jul 8, 2009 #1 Back when i got the truck like 3 months ago, it got like 20-21 mpg. Now im lucky to get 16 mpg. Is there a module that i could put on it to improve mileage, or is there any kind of fluid i can put into the gas tank to improve mileage.
Back when i got the truck like 3 months ago, it got like 20-21 mpg. Now im lucky to get 16 mpg. Is there a module that i could put on it to improve mileage, or is there any kind of fluid i can put into the gas tank to improve mileage.