Will The Xzt Hurt My Mpg?

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I have been playing with the xzt 65hp module. I am having a hard time trying to figure out if it is helping or hurting my mpg.

I am driving the same way all the time. I know that can have alot to do with it.

I really wish it would give me 1 or 2 mpg better. But I just don't see it. I actually see it possibly hurting my mpg.

Please share opinions.

 

It will help your mpg.

 

If you keep your foot out of it!

 

I lost 1 to 2 MPG also, ran the Hand cal. test 3 times with and without the chip.. "kept the foot out it during my test'

chip stays out until Im ready to pull the 5er from now on.

 

I generally saw a little improvement in mpg with only a pressure box. Have not had a Quad XZT but an EZ most of the time.

Every truck and driver is different so kind of hard to say one thing is constant. But with driving my age I would see around 1mpg increase. But that level increase is hard to attribute to any one thing. I do know that when I added some additional timing the mpg increase was better and more consistent. Just my experiences.