Delete mpg vary depending on make model tuner tune power etcMy friend in Wyoming has a F350, deleted it last fall, tuned, etc., and is sorely disappointed with the lackluster MPG "gain" - other than no more DEF, he advised us it wasn't worth the trouble, cost and cashing in your warranty early.
Why I'm looking into other cost effective ways to boost mileage when we're not towing, and haling about 1/2 ton in the back.
I'll put in a plug for that Back-Flip cover, after a year, with 40k miles on it, we really like it.
I have multiple tuned fords and it doesn’t help their mpg much (especially if duallys)
Every XD and every tuner will increase mpg about 2mpg in mid power tunes.
The reason to tune is so you won’t need a warranty anymore. How is it no one is capable of grasping that...