BassAckwards

275/55R20 is 39lbs

Lacrosseman812

Thanks

HoustonRider

Not sure I like ur screen name, but I concur on the weight of the ATIIs from Toyo at 43lbs that's not alot of loss.

I don't worry about LT tires for hauling as much as I like em cause the thorns won't leave me stranded. But LTs are gonna eat up mileage and leave ur ride much more firm than it is now.

Al Kohalic

Love my Duratracs. Went to a plus one over stock and lost roughly 2 mpg after calibrating the speedo. It was saying I was getting 14 mpg combined when the speedo was off and now it is around 16-16.5 at the end of each tank with mixed driving. My best advice for you is to stay far far away from the Bullydog tuner.

jcain

Most of our field trucks rock duratracs and no one has anything bad to say about them. But the company eats the fuel bill so no input there

Lacrosseman812

What is a tuner that has the ability to reset the speedo that is also a really good tuner?

Techboss

275/65/18s - It seems to get about the same mileage when going 70ish or under. Over 75 and I loose about 2-3 mpg. Removing the front air damn might have something to do with it as well.

Lacrosseman812

That's probably where ill get killed during school year because I have a 2 and half hour drive from college to home and I go about 75-85 and other wise I only drive about 15 miles a week if that an I get maybe 14 mpg in this town

red crow

I have 35" tires that are 12.5" wide with an SCT tuner running the fuel economy program I am getting above 16 mpg usually 16.3-16.7 depending on how I am driving. I also have an intake and cat back exhaust.

When I had my stock tires on this winter with the fuel economy tune I was getting just above 17 mpg, so I am only down about 1 mpg with my 35"s on instead of the stock tires.

If you like to accelerate fast and drive considerably faster than the speed limit on the interstate than you will notice your fuel economy go down pretty quickly. I also have 3.73 gears.