What's the mpg in your lifted/geared 100 Series?

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My 98 is lifted 4" with 4.88 gears and 315 tires, anyone running a similar setup and if so, whats your MPG?
 
is yours a 105? how did u get 4 inches of lift? Body + TB crank?
 
is yours a 105? how did u get 4 inches of lift? Body + TB crank?

Wondering the same^^

Also, there are so many variables to MPG regardless of lift/tires/gears. I'm guessing you'll hear 11-15 MPG. It's not gonna be 5-20 MPG.
 
The overall lift from stock is about 4 with the following:

OME heavy suspension lift

OME torsion bars

315/75/16 BFG KM2
 
After hypermiling a full tank, I'm getting 14.3 MPG, not bad with all the stuff done to it....
 
With 35s, roof rack and 4.88s I can get 15+ if I drive lightly(slowly) on mtn highways, and 17+ if I draft another 100. Normally 11-13.
 
With 35s, roof rack and 4.88s I can get 15+ if I drive lightly(slowly) on mtn highways, and 17+ if I draft another 100. Normally 11-13.

Sounds about right....I just love the sound it makes with my cat back exhaust thought....
 
agressive 33" Nitto Trail Grapplers E-rated
Ironman lift all around
BIOR front bumper, rear bumper, 12kLB Winch, Hi-lift, spare, sliders and stock rack
4.88 gears
55mph I can get 14-15
60+mph more like 13-14
Around town mixed driving 11.5-12 mpg
 
With 35s, roof rack and 4.88s I can get 15+ if I drive lightly(slowly) on mtn highways, and 17+ if I draft another 100. Normally 11-13.
Similar set-up to Loud's but I seem to get 11-12mpg on CA summer blend fuel.
 
Re-geared and 33's, with less stuff on top than Loud (and I drive slower) . I get 12-16 depending on driving style. 11mpg pulling camper at 80mph.
 
Re-geared and 33's, with less stuff on top than Loud (and I drive slower) . I get 12-16 depending on driving style. 11mpg pulling camper at 80mph.

What are your RPMS at 75 mph? I have 305's (33.4'), OME 2.5 lift, opor sliders, slee front bumper, bajarack full roof rack and a tepui tent I will have on half of the time.
I am seriously considering re-gearing. I currently get about 10 -12 miles per gallon, but what I really notice is that when I am driving 75-80 (highway speed outside of town) the RPM are in the upper 2800- 3k range and I am just wondering if it lowers that. I notice that if I drive 65-70 gas mileage is way better because RPMS are in the 2400 range. The power isn't really an issue to me. The truck feels the same as it did when it was in stock form. I'm just more wondering if its worth it for getting better MPG? I am attending HIH this year and doing additional driving that week. I will probably do about 4k miles after all said and done. So the question is..... is it worth it? not to mention, if I get the gears, I must get a front locker to install at the same time.... this is going to hurt the wallet bad. ITs between this or a slee rear bumper and new rear coils.... what you guys think?
 
What are your RPMS at 75 mph? I have 305's (33.4'), OME 2.5 lift, opor sliders, slee front bumper, bajarack full roof rack and a tepui tent I will have on half of the time.
Hopefully someone else can offer some input, farinvail hasn't been on for 1 1/2 years. Regearing will lower highway RPMs, but I have not had enough personal experience to know if it is worth it or not.
 
Do all you guys have corrected speedos? I really want to know what my mpgs are with my 295/70/18's but there's no way to tell without getting the speedo corrected. I guess you could try to use GPS but that won't give you a full tank mpg unles you remember to turn it on before every time you drive.
 
Do all you guys have corrected speedos? I really want to know what my mpgs are with my 295/70/18's but there's no way to tell without getting the speedo corrected. I guess you could try to use GPS but that won't give you a full tank mpg unles you remember to turn it on before every time you drive.
Very true. I don't have speedo corrected and don't bother to compensate.
 
Do all you guys have corrected speedos? I really want to know what my mpgs are with my 295/70/18's but there's no way to tell without getting the speedo corrected. I guess you could try to use GPS but that won't give you a full tank mpg unless you remember to turn it on before every time you drive.
Most accurate way to know true MPG:
1) Fill up tank
2) Record number of miles driven btwn 1st fill up and 2nd fill up
3) Divide # of miles driven btwn fill ups by # of gallons required to fill tank up on 2nd fill up

Example:

I traveled 350 miles btwn fill ups and it took 22 gallons of fuel to top off tank: My MPG for that period = 15.9 (350 divided by 22)

I have a feeling that alot of people on mud go by computer mpg readings which are notoriously inaccurate and absolutely inaccurate when modifications like larger tires have been made.

I would be interested in seeing peoples mpg's using this method.
 
Most accurate way to know true MPG:
1) Fill up tank
2) Record number of miles driven btwn 1st fill up and 2nd fill up
3) Divide # of miles driven btwn fill ups by # of gallons required to fill tank up on 2nd fill up

Example:

I traveled 350 miles btwn fill ups and it took 22 gallons of fuel to top off tank: My MPG for that period = 15.9 (350 divided by 22)

I have a feeling that alot of people on mud go by computer mpg readings which are notoriously inaccurate and absolutely inaccurate when modifications like larger tires have been made.

I would be interested in seeing peoples mpg's using this method.
This method only works with stock tires. Because with larger tires the speedo/odometer is off. The most legit way to measure mpg is to count your miles using a gps. Then take that number divided by the number of gallons you fill up with.
 
I am seriously considering re-gearing. I currently get about 10 -12 miles per gallon, but what I really notice is that when I am driving 75-80 (highway speed outside of town) the RPM are in the upper 2800- 3k range and I am just wondering if it lowers that. I notice that if I drive 65-70 gas mileage is way better because RPMS are in the 2400 range. The power isn't really an issue to me. The truck feels the same as it did when it was in stock form. I'm just more wondering if its worth it for getting better MPG? I am attending HIH this year and doing additional driving that week. I will probably do about 4k miles after all said and done. So the question is..... is it worth it? not to mention, if I get the gears, I must get a front locker to install at the same time.... this is going to hurt the wallet bad. ITs between this or a slee rear bumper and new rear coils.... what you guys think?
IMO, lowering RPM's maybe help you get a little fuel efficiency back. But the bigger issue is wind resistance at 75-80mph... which you can't overcome. The increase in wind resistance, going from 60mph to 80 is exponential.
 
Yes, but with the larger tires the odometer is incorrect too.

Stock is a 31 inch tire, upgraded to a 33 inch approx (295/75-16 is 33.42 inches). So that is a 7.8% difference. If you traveled 300 miles by the odometer, you actually only traveled 278.1 miles since the tires rotated 7.3% less. So you would need to divide that by the number of gallons the truck needs to be full again.

At least this is my understanding.
 
Yes, but with the larger tires the odometer is incorrect too.

Stock is a 31 inch tire, upgraded to a 33 inch approx (295/75-16 is 33.42 inches). So that is a 7.8% difference. If you traveled 300 miles by the odometer, you actually only traveled 278.1 miles since the tires rotated 7.3% less. So you would need to divide that by the number of gallons the truck needs to be full again.

At least this is my understanding.
Right you would have to record the number of miles driven by a method other than the odometer.
 

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