Mileage went way down after tuning

[mtpolarbear]

My mileage went from 20.5 mpg hwy consistently then I installed an SCT with tunes from Vivian @ Quick Tricks and an Edge CTS. Anyone else have this issue> I am running the Street Tune, and yes, I am keeping my foot out of the pedal. Too old for that crap. Help!

[Brieldo]

What did the mileage drop to?

[mtpolarbear]

Sorry about that. It dropped to 12 or so.

[Brieldo]

Crips, that's quite a drop. I'd get at her and ask for her insight.

[mtpolarbear]

Yes I agree. I just sent her an email today so I hope to hear soon. I live in Montana and to get anywhere you have to travel at least 90 mile between cities. I travel 130 miles one way just to get to my Doctor! So mileage is huge for me.

[Brieldo]

Originally Posted by mtpolarbear

Yes I agree. I just sent her an email today so I hope to hear soon. I live in Montana and to get anywhere you have to travel at least 90 mile between cities. I travel 130 miles one way just to get to my Doctor! So mileage is huge for me.

I've never used any of Vivian's tunes but I know her reputation is solid. I'm sure she'll do whatever she can to help you.

[mtpolarbear]

That's why I did business with her. I'm sure she'll be able to figure something out.

[F250SixOH]

One thing to consider is your mileage as far as the reading of it goes. If the revs per mile was off, then it could mess up the rate at which your mileage increases. Could be an issue but who knows.

[mtpolarbear]

Originally Posted by F250SixOH

One thing to consider is your mileage as far as the reading of it goes. If the revs per mile was off, then it could mess up the rate at which your mileage increases. Could be an issue but who knows.

Are you talking about the tire revs per mile? I did put a different size tire on when I bought the tuner. She did account for that. Are you saying that she might have made a wrong calculation or am I all wrong here?

[dhetrick2]

Originally Posted by mtpolarbear

My mileage went from 20.5 mpg hwy consistently then I installed an SCT with tunes from Vivian @ Quick Tricks and an Edge CTS. Anyone else have this issue> I am running the Street Tune, and yes, I am keeping my foot out of the pedal. Too old for that crap. Help!

I run Vivians tunes and get the best fuel milage from the looney, 18-18.5 mixed driving. If I were getting 20.5 I would go back to stock.