gears and mpg
#2
#3
The SOHC 4.0L actually likes to cruise around 2800-3000 RPMs so going down to 3.73s will actually decrease your gas mileage unless the only driving you do is highway at around 85mph... your city mileage will really decrease with the 3.73s as it will take a lot more effort to to get the truck moving every time you have to stop.
#6
#7
Originally Posted by rdy4mud
i dont care how long it takes to get the truck moving, my lifes not a race i just have to get to point A to point B and not go through 100$ in gas a week
#8
i think you will increase in gas mileage. the 4.0 makes good low end torque so you dont need to run it at 3k all the time. i went from 3.73 to 4.10 on my 3.0 with 32's and it took me from 22mpg to 18mpg but its so much nicer to drive now. my dad has a 4.0 ohv with 3.08s and 30" tall tires and he gets 20+mpg
#9
Unregistered User
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steping down in gear ratio is going to hurt your MPG rather then help it.
this is going to make the truck work harder to get rolling from a stop thus reducing MPG. if anything i say go up in ratio to a 4.56
this is my plan as soon as i get some funds. with the 33's and stock 4.10's i get about 13 MPG, with 31's i was seeing 19-20MPG
this is going to make the truck work harder to get rolling from a stop thus reducing MPG. if anything i say go up in ratio to a 4.56
this is my plan as soon as i get some funds. with the 33's and stock 4.10's i get about 13 MPG, with 31's i was seeing 19-20MPG
#10
#11
Originally Posted by rdy4mud
i get 13mpg with the 4.10s and 31's. i find it hard to believe that going to a higher gear will decrease my mpg, i dont care how long it takes to get the truck moving, my lifes not a race i just have to get to point A to point B and not go through 100$ in gas a week
Check your odometer accuracy, especially if your tire sizes aren't stock. This can make a big difference. Your mileage might be better than you think. Mile markers are posted on all freeways. Re-calculate your mileage after you find how much error there is.
Most of all check your right foot. This can make the biggest difference in mileage of all. If your life's not a race, then drive like it!
#12
Originally Posted by rdy4mud
i get 13mpg with the 4.10s and 31's. i find it hard to believe that going to a higher gear will decrease my mpg, i dont care how long it takes to get the truck moving, my lifes not a race i just have to get to point A to point B and not go through 100$ in gas a week
you might wanna get that checked..im runnin 4.88 gears, on 37x14 tires with a 4.0 and getting the same thing as you are..something isnt right..
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