Tune MPG effect?

[cwbolyard]

Finally got my build email for my 2.7 Black Diamond. Considering getting the Ford tune for additional power. Have anyone monitored their fuel economy after the Tune? Will it help or hurt? Thanks, Chris

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[RagnarKon]

Lowered it by 0.93 MPG during my admittedly flawed scientific test.

But it’s going to depend on your driving habits. The tune changes the throttle response, the shift points, and how much boost is applied. So if you drive around town a lot and don’t adjust how hard you are on the throttle, you will see a noticeable hit.

If most of your miles are on the highway/interstate… probably won’t see any difference.

 

[Billnchristy]

We did ours relatively early (probably about 3k in) and my wife's MPG keeps going up. I'd say at the time we were at about 18.1 or so and now is 18.6 but, this is probably more due to her getting used to it, she had a Volt before and while it had that electric car torque, it was more of a dog compared to the bronco.

So, in my also not very scientific test, it hasn't hurt or maybe possibly helped a little.

 

[SkiRig]

I just did an 1100 mile trip through the Sierras and was able to average 21.5 mpg (23 WT 4dr). Before the tune I had done a shorter trip (400 miles) of mostly hwy miles and I was averaging just under 20 mpg. So I feel it did improve hwy mpgs. For city driving, I don't think it has made a difference.

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