[Black 2500]

I installed my AD II 165 last weekend. I have been running my 60 HP EFI tune for the last few weeks for daily driving (gets better MPG then my stock tune) and was about 18.4 MPG city with a little highway and 22-23 on the highway. I am at 18.9 MPG city/highway now with my lift pump so it has definatley not hurt my mileage.

It is easy for me to compare mileage as I run around to the same job sites and site meetings week after week so I can get a good comparison.

I will be running up to the cottage this weekend on the higway towing the boat so I will see how it does there towing and with no trailer on the way back.

I am also strapping it down to the dyno Saturday as well so I will see if it helps fuel my 160 HP tune.