35's 4:88's 14 mpg

[x2elite]

My speedo is dead on with 35's and 4.10's, checked it out with my GPS and its always dead on with the GPS.

 

[ipkyss]

410 35s and 5sp. speedo withing 1 mph. 17 in town, 19-21 highway depending on speed. Best at around 68. 98 xj 4.0.

 

[aroncull]

285/75/R16
Curb weight 4200#
Gears 4.88's
Highway in overdrive 20-21 average RPM's @ 2500-2700
passing = 14 -17 [ not in overdrive] RPM's @ 3100-3400 [ i think ]
Obviously an automatic

Some data pulled from the trip computer in the overhead console.

Aaron

OBTW i Just tonight put in the the speedo gear and reset the trip computer, so i will repost when i get in on the highway etc... \ i will also cross reference with our minivan that has a Kenwood/ Garmin in the dash for refence on my speedo since i need to check it. Or want to i guess.

 

[Prepmech]

35s, 4.88s, auto, 4.0L. Speedo calibrated and GPS verified. Mileage found using fill tank, reset odometer, refill tank after trip method

15 mpg highway

 

[hidesintrees]

35s 4.88s and i get bout 13-15 almost all highway and wheelin. most on a tank was 285 miles no wheelin, i think my odometer is a tad bit off though, my speed gear is pretty accurate tho. does that make sense?

 

[Starscream]

So 35s and 4:10s seem to be the winner...

 

[Achmed]

4.88's, 37's and an AW4 - 13/14 around town and 17/18 on the hwy.

 

[x2elite]

Honestly..... with 4.10's and 35's I still feel like I have plenty of power.

 

[1998xj1985]

i've got 33/4.56 and get 17.5 on the highway at 60 mph or so average, 2200 rpm - 35/4.88 should be comparable in rpm and mileage. 2700 sounds real high for 65-70 mph