How much did the mileage go up?
1086685
Not a whole lot. I'd say 1mpg. If you do a dpf delete you will see a big difference. Make sure if you want a pyro you get the correct unit.
1086686
Worth it, if not for 2-3mpg gain, the performance enhancement (power)!! Of course all other upgrades aid to gains in mpg not just the mini max. Paid FULL price but think it was the best investment so far & I only had the diesel 4 weeks before seeking mini max. Good luck, great buy!
1086687
Mileage seems to be the best on the "Street" tune, hand calculated. Changing from "Stock" makes the computer think it's using less fuel than it is. Usually burning about 1/2 gallon more per tank than my computer says I am, resulting in less mpg than the computer tells me.The tuner isn't the only factor in determining mileage. Removing the DPF, adding a CAI and blocking the EGR has a little to do each. I average 17mpg city-ish... and on a 65mph highway, early 20's. Like 22mpg. Conditions are never the same for anyone though. You will see a slight increase, but nothing crazy. Again... too many variables to include. Mileage seems to be the best on the "Street" tune, hand calculated. Changing from "Stock" makes the computer think it's using less fuel than it is. Usually burning about 1/2 gallon more per tank than my computer says I am, resulting in less mpg than the computer tells me.The tuner isn't the only factor in determining mileage. Removing the DPF, adding a CAI and blocking the EGR has a little to do each. I average 17mpg city-ish... and on a 65mph highway, early 20's. Like 22mpg. Conditions are never the same for anyone though. You will see a slight increase, but... » Read More Mileage seems to be the best on the "Street" tune, hand calculated. Changing from "Stock" makes the computer think it's using less fuel than it is. Usually burning about 1/2 gallon more per tank than my computer says I am, resulting in less mpg than the computer tells me.The tuner isn't the only factor in determining mileage. Removing the DPF, adding a CAI and blocking the EGR has a little to do each. I average 17mpg city-ish... and on a 65mph highway, early 20's. Like 22mpg. Conditions are never the same for anyone though. You will see a slight increase, but nothing crazy. Again... too many variables to include. « Show Less
1086688
I went from 15 avg to about 17.5. I do tow a lot, so that included highway, city, and towing. My best road trip unloaded was 18.35. But I ran the transmission tune as well, and setting on HOT!! Great power when you need it! Running with DPF removed is a must to gain any real mileage.
1086689
Hand calculating my mileage I went from 12 mpg to 16 mpg mostly city driving. I accelerate from a stop light to speed limit using 7 to 10 psi boost. I've taken the truck out on some long highway trips and calculated 19mpg. Truck is all stock except for some exhaust piece.
664752
There is definitely a noticeable increase in power off the throttle but I really didn't note any significant improvement in gas mileage, but I added a lot of extras to my truck at the same time that increased the weight such as a sports guard and winch and larger tires. I would look at adding the Fitch Fuel Catalyst for better gas mileage. It is a couple of hundred bucks, but worth every penny.
420547
Best traveling purchase I ever made. There is always a trade between being able to take what you need and MPG. I doubt if you could tell the difference. If you list mileage, slow down and make it up.
519901
Yes my gas mileage increased 3.5 mpg at a the minimum. I probably would have gotten more but I have a heavy foot. I just sold my truck a couple weeks ago and no longer have any use for the superchip. If you want to purchase mine just let me know.... It's in perfect condition.
1353868
On my 2012 HD Road King, with Stage1 (Heavy Breather intake with 4" Rinehart pipes), the gas mileage improved slightly. But I down already from the estimated 42mpg to about 38-40mpg with the stage 1 kit. I noticed only an extra mile per gallon if any. But also, since the bike ended up with more low-end torque, I had a tendency of cranking the throttle up at lower RPM which is harder on gas. You won't regret the performance increase. More Torque, and much smoother throughout the power band.
179127
You might want to check but my recollection is that it went up through 2011. They might hsve an update that can be uploaded but I honestly have not checked since my vehicles are all under 2011!
59948
I was using 87 with the tune then went to 93 and It seemed to be better power and mpg with 87 but idk my mpg but I can tell I get better though
238083
I have definitely. Before the install I was averaging about 19 city and 26 highway. After I'm looking at right around 24 city and and 32 highway... about an extra 40+ miles per 15 gallons. ALSO better acceleration and easier cruising.
585492
I have no idea why the huge price increase, but I SURE AM HAPPY I bought mine in April, 2011, for $229.99. And, I am thrilled with its performance.Chuck
163513
I could see no noticeable MPG change when using this box. I consistently take 400 mile trips and have done so with and without the box. MPG seem to stay within my avg total over several trips.
59947
I didnt see much mpg gains! Maybe 1mpg! There is several different tunes 89 octane and 91 depending what u want!
861467
Hello, it all depends on driving style. This definitely has the ability to increase MPG. Its not a huge amount though, so justifying the purchase simply for MPG might end up being a wash.
1258797
i really have not compared before and after. on the highway i average 26-27 mpg. i have really noticed a power increase and i just love the sound when i put my foot to the floor.
1353867
Very little but added life to motor since it is now running a better AFR. I am not to concerned about mileage I like the performance gains though
1353869
You will sacrafice fuel milage, mine went from 42 mpg to 38 mpg. But worth it to me. I've made mods to the engine and changed exhaust 2 or 3 times and the Auto-tune keeps it running at peak performance. No more costly dyno after mods!
568914
That depends on driving habits. Lucas will keep fuel injectors and fuel system clean which may increase mileage, however it will decrease the possibliy of injector replacement, which is spendy. I keep a close eye on mileage and can tell you I've noticed an increase, slight, but none-the-less an increase. I hesitate to say how much, because as stated early on, that depneds on driving habits.
881473
Lol and to answer your actual question.. I did not lose mpg , you should gain 2-5mpg. Sorry