99 3/4 4x4 A/t Mileage 14-15 Is This Normal?

[drives mopars]

MY BROTHER HAS A 99 3/4 4X4 WITH LIFT KIT

AND 285 OR 315'S OR ABOUT THAT SIZE TIRES

AND 4. 11 GEARS , IS 14-15 EMPTY NORMAL?



ALSO HE WANTS POWER BUT NOT LOWER MPG

I TOLD HIM TO JUST A EZ BOX



WHATS BEST AND IS THE MPG NORMAL



BILL

 

[Uncle Joe]

you are in the ballpark

i had a 99 qc 4by swb auto 3. 55 all stock,it got 19mpg mostly hiway,with some city driving

 

[csutton7]

sounds like it's in the ballpark--now for the power thing--he's got to get this mileage thing out of his head and BOMBS away... he,he... . chris

 

[drives mopars]

CHRIS

CHRIS MY BROTHER FINALLY HAS THE BEST TRUCK

OR VEHICLE HES EVER HAD , HE WANTS TO PULL

RV TRAILER W/ 2 HD'S INSIDE , AT LEASE HES CONCERNED ABOUT MPG'S



HE'S STILL THINKINHG OLD GAS STUFF MORE POWER

USUALLY MEANS LESS MPG, BILL



SEE YA CV08252001 AT THE DRAGS

 

[Ted Jannetty]

If he has not corrected the speedo for the bigger tires the mileage figures are going to be low and not actual.

If you take that in to consideration then 14-15 is somewhat low.

If not then it is ok because you will add 10% to 15% to your figures and that will put him right in the ballpark of normal.

 

[BIG BOB]

Ted is correct, with 285's it calculated out to be just over 8%. That would mean that he is getting about 16. 2 mpg with 285's, and even more with larger tires.

 

[MidwestMotorman]

Reflashed????

Do you know if the truck has been reflashed with the better power band programming by a dealership?