Been working fine for me.

Have used the tow and extreme tune without issues.

Just as an fyi, I calculate the mileage by filling the truck up to the filler neck and divide mileage into gallons every time I fill up.

The truck computer shows 17.5mpg on the highway cruising between 70 and 75mph.

The mileage drops as quick as Monica on Bill when I'm driving around town.

Steve

Yep, just changed the air filter, thanks.

I've historically changed the fuel filters at around 15k.

sorry guys i just got home from work! I was with kevin all day tuning a 2010 gt500 @ mustang specialties. So 9-20...very wierd. NJK how many miles on your truck? Where do you live (for altitude purposes), When was the last time you did a fuel filter? I assume you take care of your truck but i might ...

pretty low.

pic350ford wrote:njk , what kind of gear in that truck ????? rpm @ 70mph???

running hard , i might see that milage , never running down the highway

3.73

I'm guessing around 1700 at 70mph.

Don, I dont get it. all these trucks with low mpg???? I run the same truck as some of these guys.....

Have they run the lastes tune???? From the mpg they are talking about, they should be pulling a duramax up a

mountainside..... Just dont understand

I don't understand either.

I'm stuck ...

Thanks Don.

Won't be til tomorrow before I can download anything as I'm up in NH with dial up service.

Don,

Still testing the Economy tune. City driving mileage is horrible. Got 11.8 driving in town. Highway seems to be anywhere from 14.5 to 17.5, but I'm relying on the onboard computer at this point. Haven't filled up yet and I'm not driving for a few days. Will fill up again on Tuesday for the ...

yea it still picks up torque and all that good stuff, but when it lacks the extremes 900 ft lbs your so used to, well yea you get the picture haha


I just revised the extreme just now with another 3 degrees added to the top end. If you wanna just forget about the economy and test this one thats ...

Mostly highway, I'd say about 25% city driving

you've got mail. Another 3 degress added to the highway sweet spot. See what she does and if you get a shudder or not.

Don,

Do I have the latest Extreme tune, or did you revise it again after 7-24.

You're right about the Economy tune you sent me ...

pic350ford wrote:lol shes not dirty, she dont lay down for no one

I like'em standing up.

SCGt94 wrote:The guy whos truck ive been using was running a lifted version of your truck njk and got 9mpg just for comparison sake on my end, 9mpg city, 11 on the highway. Truck was bone stock too.

Thanks Don,

I'm loading the Econo tune right now that you sent me today.

Pic, just for comparison, are you driving an 08 Crew Cab?

That's what I'm running and your mileage is much better than mine.

Same here.

12.3 mpg on the latest extreme tune, mostly city.