SoonerLS

I don't remember for sure which ratio I have (I think it's the 3.31), but I'm usually in the 17-19MPG range with mixed driving (though usually more highway than city). I don't drive like a grandpa, but I also don't drive like a speed demon, either.

M0RRIS

3.73's and I'm getting 15.5mpg in the city. That's varying speeds from 40-50mph. I havent done any long highway in a while but I was talking to my buddy about it yesterday. When I got the truck I took it across Michigan and got 22mpg. That's with AC running. I'm curious to see with the level and 305's what my best highway could be. I have never reset the KAM, maybe I should.

Aboostedf150

Honestly It's your UR foot
period:.
after the motors broken in..I get as high as 22-24 mpg on the freeway & I have every bolt on but turbos..I get about 16-17 if I drive city/hwy combo ..so mid teens in the city.

any speed over 66mph (rpm based on my rear gear ratio) your mph drops fast..I get about 17-18mpg if I am driving 80-90mph at 65mph it's 21-22mph..cruise control works wonders learn to use it in he city.also if your going slow u have to use more gas to get moving so I'd like to use M instead of drive & try to keep my rpm's in that sweet spot where I get the best mph on the freeway..

i may complain about LETS tune only having 371/421 Rw with bolt On's but I have heavy 22 inch rims & big 315-/42-22 rears tires & the mpg is great..

you can only control ur Mpg by controlling your RT foot..

Spiky

That would entirely depend on the gas price, that should be stated as a percent, not a specific dollar amount. Here in the center of the E world, Minnesota, they price it below 87 octane, at just about a price that gives the consumer essentially a break-even value. If it is more expensive elsewhere as indicated, the value is negative. It's really stupid how they have sold his product.

If you are running for performance (say, in a modded muscle car with 1000hp), a comparison to higher octane gas may be appropriate, increasing the monetary value significantly. But that is really a different world.

Wanted33

I've got the same set up on my 145" WB with the same gears, and strangely the same mileage.We're getting the same mileage on the highway at 20 -21mpgs. However, in town I'm getting somewhere in the neighborhood of 13, with a combined average of 17+. Could the only variable be the right foot? Maybe be more cognizant of your starts from the stop lights/signs. Good luck, that's only thing I can think of that might be the difference.

RLXXI

Specific dollar amount is the equation they use and makes perfectly non technical sense, remember there are a lot of people on the road that can barely read or write much less figure out percentages.

If regular fuel is $1.50/g they can easily determine that $0.87 less than the regular fuel makes economical sense to use E85 that's selling for $0.63/g.

The equation they use works every where fuel is sold with no complicated math involved.
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Spiky

That's quite a commentary on the state of people.

If you can handle percents, aka multiplication, use 30%. If it isn't saving at bare minimum 30% vs 87 octane, you spent more by using E.

RLXXI

Sad one but yes very true. I have no problem with percentages, math was my favorite subject in school. Just saying they use a very easy method to determine if E85 is a good deal for the less educated among the driving communities world wide, generally speaking it's dumbed down for a reason.

I don't make the rules or determine how and why, I just spread the 411.
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M0RRIS

I drive a city bus for a living, he's not far off with that comment.

Spiky

And I thought I was mean to humans. LOL!