Lol. Good luck with staying out of it. Let us know how much of a difference you feel in drivability

 

Drivability has definitely increased! I use a lot less throttle than stock. My mileage, on my way down here came up to 18.9 on the lieometre. That was on cruise at 60mph for 80 miles, and on cruise at 70 mph on the expressway for around 110 miles. I did kick it off cruise due to slower traffic, and did kick it up to 75 on the pedal for about 25 miles. All in all, I'm doing better it looks like. I plan on filling it up and do a manual calculation probably Sunday, when I head back north. That calculation will have around 50 miles crazy city driving on it.
Still not stellar mileage, but better.

 

WTF, I only get 14.5 mpg on my 2014 5.0.


I do have a bit of a heavy foot.

 

You must have quite a heavy foot!

Here's mine and while not great, considering the sample size, it's not bad.

 

Did you adjust your transmission with the tune? If you did, how much of a difference did it make?

 

Yes, the trans shift points and firmness was adjusted. It now shifts at 10, 20, 30, 40, and 50 mph. The shifts are not so firm that it slams into gear though. I also noticed, the torque converter now locks in 4th, instead of 3rd. It reminds me of when the trans was in tow/haul mode before the tuner.

 

Mine seemed to get better economy on the 91p/t than the economy tune.

 

I get 17mpg with 87 p/t tune, level and 34'' tires.

 

Just got back from downstate. I wound up with 17.5 mpg, figured by calculator, by the lieometre was right there. First time that ever happened.

I'm going to try the 89PT next, probably be a couple weeks though, I'm only driving this downstate and back for right now.
That 17.5 is with 33" tires, and the type driving I mentioned in one of the above posts. If I get time this week, I'm going to make sure MPT used the tire size, gear ratio, and mods I sent them so they could program my tuner.
So far, I'm happy with it, but may contact MPT about the gear change speeds, I'd like to get the 2nd-3rd, on up, to shift a couple mph lower.

 

Press the tow/haul button, that'll bring the shift points down to what you want.


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