Im just curious is 200 miles/tank a good gas mileage? Approximately 13 mpg highway is that normal? My previous TJ SE was getting gas mileage than this and I thought 4cyl and 6cyl was getting the same gas mileage?
I get about 20 mpg with 31" MT/R in my Rubi. Part of that is driving habits. Do this, fill up at a gas station till it clicks (don't top it off). Make a trip of a known distance ending somewhere and fill up again (same thing, don't top off). That shows how much gas you used, and you know the distance already, don't use the odometer.
I do not think this is true. I thought there is a seperate mechanism at play for the odometer.
Jerry's correct -
The information as to speed and odometer is derived from the sensor on the t-case, then translated by the computer. It simply counts the output shaft's rotation, the computer factors in tire size and gear ratio.
Changing tire size, or axle ratios affect the speedometer and the odometer.
It's a simple thing for the dealer to correct the calibration in the computer.
It's no wonder the country is falling apart - stupidity abounds!
Why would you go to a dealership when the minimum charge is $95 (as seen listed on their wall. That is what they charge just for looking at something) when you can get a calibrator and do it yourself? It will cost a couple of bucks more, but you can reprogram it so that it is right every time you get new tires. I doubt the dealer would get it right on the first time.
Holy crap now I know why...I drove the jeep with a flat tire!!! No wonder...I drove back all highway as well and I was averaging 17mpg. I don't understand how I could get a flat tire. All tires are good no holes and plus I just got the vehicle not even 2 weeks ago.
Have you considered taking it to the place where you purchased it and asking them to correct your speedometer?
At no charge of course, since the mileage listed when you bought it is certainly inaccurate.
Oh and, I have the same Y/M/M as yours, I get 10.5 mpg. You're doing great.
06 Rubi with some sort of double ended, chrome knobbed, cross threaded, infinitely adjustable, frequently breakable, worn out flammywhammers zip tied onto it.
It used to be a jeep thing... til that sh!t broke!