MPG killer?

[bluecummins31]

I have a 2006 6spd 4x4, stock gears.
If i do a leveling kit and put 35x12.5-17 cooper ATR or similar tire. Will that kill my MPG? Should it help since my truck is reving so high at 65 to begin with?

[whiterocket5.9]

what gearing do ya have stock,i had soem 35's it didnt kill it too bad but i cant tell ya exactly what the mpgs were since i never got my speedo recalibrated for em....

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05 dodge 2500 4x4 quad cab sb srw 5.9, 6-speed, 3.73,airaid intake, and 4"free flowin exauhst, p-pup, 35" xtmt procomps

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Last edited by whiterocket5.9 : 10-13-2008 at 12:35 AM.

[bluecummins31]

well i think its 3.73 or something like that. i dont know to be honest.

[cum03mins]

i got the 2003 with 3.73 in the rear with leveling kit and 35's. i also run a bullydog programmer on tow which is a 30hp boost and last time i filled up and did the math i was getting 12.1 all around town with a slight heavy foot...(thats on paper not the over head)

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03 2500 4x4, Bully Dog PMT, Leveling Kit, Smoked LED Thrid Brake and Marker Lights, 315/70/R17 BFG A/T's on Moto Metal 951's, Black Halo Projector Headlights, Billet Grill, and adding as money allows

[bluecummins31]

wow that terrible. unless your heavy foot is more than i think.

[awenthol]

Around town you'll lose due to big tires...on the highway you may see a gain because of the tires but you will lose some due to the level. Had a 2nd gen leveled w/35s and it was a solid 13/15 city/h-way. All depends on how you drive though.

[Cummins6speed]

I have 31's with 4.10's and I hate it. It should be perfect when I get 35's

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My truck: 06 5.9 G56 4x4 Quad Cab Short Bed Patriot Blue. Smarty TNT, Valair 3600DD, DiPricol's, Home made intake w/ amsoil filter, Straight Piped w/ 7" tip, silencer ring MIA, glove box sticker MIA 2/28/09-470hp/980tq

IBEW 551-PACIFIC COAST DIESEL

[RAM_89]

cummins6speed!! same here i get beter fuel millage with the 35's and the PMT now then when i had the stockers!! i have the 4.10 btw

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2008 3500HD Laramie, 6.7L cummins, 6 speed NADP 850hp billet heavy hauler transmission , 4.10 rear end, short box, black,lots of chrom, sun roof, nav, rear seat dvd, Line-X,10k HID's rear tool box, fifth wheel,winch ready bumper/pre-runner bar(12,000LBS WARN WINCH), 2.5'' lift kit, 35'' toyos/ 20'' AE 079 SERIES, EDGE JUICE/ATTITUDE (HOT), airaid stageII,PureFlow Raptor 150GPH, BADP 5'' duel tbe, power puck extreme

[Gixxer_750]

35's and 4.10's still rev high on the highway...it gets up and goes though around town...3.73's and 35's shouldn't hurt you too bad, maybe a little around town but nothing to bad to stop you from doing it

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2001 4x4 - ACDC ..."i've got gauges so i'll race ya..."
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[royalnine]

Originally Posted by bluecummins31

wow that terrible.

Last time I checked 12 isn't bad for our big lifted oversized tire full size trucks. Unless your one of those people who think their Cummins gets 30 miles per gallon pulling 20000 pounds uphill in a headwind.

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'04 8" lift 37's Tv's subs bla bla, unpractical - SOLD!

'06 Getting leveled 35's and 20's, practical - KEEPING!

[bluecummins31]

No but i do get an average of 22mpg hand calc. With my stock tires. So to go up 4 inches and loose 8mpg. Ya that a big kick in the face.

[elephantrider]

i noticed about a 1 mpg loss immediately
after putting on 35's. dont know how it'll
average out, but it did lower it.

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jason
04.5 6sp qclb whiskey tango foxtrot, over