I just broke 18 MPG (hand calc’ed) on the first full tank with my XRT with 60 HP tune. This is a 40/60 city/highway mix with a 70 mile round trip with cattle trailer to & from the sale barn. Stock I was averaging 13.5 to 14 MPG.
What can I say?............... I LOVE MY TRUCK NOW!
My next mod is to install the S&B CAI I got yesterday from James @ RSD. I hope to do that on Sunday.
Wayne
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08, 2500 Reg Cab 4X4, 6.7, G56-AE, 3.42, AP Flash, S&B CAI, 4" Flo-Pro TBE, H&S-XRT-60HP, Valair Kevlar 3400 SD, Best MPG to date......21.65 MPG