2nd Gen Chevrolet Colorado Forum / 2015 GMC Canyon
'18 cc zr2 with 8k miles, trifecta tune and pedal commander. my best avg was 22 on dic in eco mode and i have no idea how i achieved that, never to be done again. my combined is 16-18mpgs and im happy with that. in sport mode it drops to 14-15:grin2:
Hope the dealer can figure out why the...