It didn't seem to hurt my mileage, I drove 40 miles to my dealer and got 27 going and 27.5 coming back after the flash. One thing I did notice was when cold, It is a slug. The turbo lag is worse that ever. However, when it's fully warmed up, the turbo lag is completely gone. It always bugged the...
Please excuse me if I've made my first post a stupid one, How do you know when a regen is happening? I have a 2015 Eco with 8600 miles and I have never seen any signs of this. Will it show on the dash?