Hello everyone, I have owned an 05 for almost 4 years now (as a matter of fact I have one payment left and it's all mine! ) and just wanted to know if anyone is getting as many miles as I am from a full tank, 21.85 to be exact. Please keep in mind I do mostly highway driving at an almost constant 75MPH .

i do mostly highway driving as well, unless im in Wisco or Minnesota hitting up some great fishing/camping =].

i get about 320 miles to a tank. anything more than that would be like a small slice of heaven if i could get it regularly. im in North Dakota now, and they really like to put lots of ethanol in the gas which only hurts the ole gas mileage.

so i have been running nothing but premium and have seen an improvement. i know that the manual recommends premium and i have to say that the cost is outweighed by the mileage.

430?!?!?!

Is it down hill both ways? What size tires do you have on there?

myriad46 wrote:430?!?!?!

Is it down hill both ways? What size tires do you have on there?

LOL not down hill!!! I have the stock 16....I mostly average 400 miles but this last time I ran with the fuel light on and the DTE flashing ----- finally got to the pump and filled it, took a tad over 20 gallons.

When I do my trips to northern Wis I run Premium fuel and I get 22mpg. I just use the cruse control at 70mph. Yes I loose time but I same on fuel.

Captain caveman wrote:When I do my trips to northern Wis I run Premium fuel and I get 22mpg. I just use the cruse control at 70mph. Yes I loose time but I same on fuel.

Well good to know someone else is getting as much ...Is that 22MPG by what the dash says? (mine is never been that high) or amount of miles traveled and divided by gallons in tank.

twinblown wrote: I have the stock 16....I mostly average 400 miles but this last time I ran with the fuel light on and the DTE flashing ----- finally got to the pump and filled it, took a tad over 20 gallons.

"Stock" as in 265/75/16? Or something smaller? Keep in mind that if you have smaller than the 265/75/16, your readings will not be correct. The speedo & CPU are calibrated to 265/75/16s, which means it will look like you are getting better than what you actually are, if you are running smaller tires.

Sometimes, though not often, I wish I lived at 100' elevation somewhere in the flatlands. Best mpg I've seen is 22 (once) & a few times at 21+.

twinblown wrote:

Captain caveman wrote:When I do my trips to northern Wis I run Premium fuel and I get 22mpg. I just use the cruse control at 70mph. Yes I loose time but I same on fuel.

Well good to know someone else is getting as much ...Is that 22MPG by what the dash says? (mine is never been that high) or amount of miles traveled and divided by gallons in tank.

I'm using the Dash computer to do my math. I did check it by the guage. and it did come out to be the same. I'm running 265/65/17r = out to be the same as a 265/70/16r. Im turning less tire mass the bigger rim acts like a flywheel and helps keep revolutions going. Its going to suck more when I change my tires to 265/70/17r.

NVSteve wrote:

twinblown wrote: I have the stock 16....I mostly average 400 miles but this last time I ran with the fuel light on and the DTE flashing ----- finally got to the pump and filled it, took a tad over 20 gallons.

"Stock" as in 265/75/16? Or something smaller? Keep in mind that if you have smaller than the 265/75/16, your readings will not be correct. The speedo & CPU are calibrated to 265/75/16s, which means it will look like you are getting better than what you actually are, if you are running smaller tires.

Sometimes, though not often, I wish I lived at 100' elevation somewhere in the flatlands. Best mpg I've seen is 22 (once) & a few times at 21+.

my factory stock's are GENERALS 245/75/16

twinblown wrote: my factory stock's are GENERALS 245/75/16

Have a look here: http://www.discounttire.com/dtcs/infoTireMath.dos

Plug in your tires and then the 265/75/16 & have a look at the differences. Not much, but it would be enough to notice if a full tank is involved.

That is strange and maybe I am not to good at this but why would all the results change when only the width increased?

Tire mass has alot to do with MPG. When Im not going to N. Wisconsin I only get 18mpg or less.

twinblown wrote:That is strange and maybe I am not to good at this but why would all the results change when only the width increased?

If you look at the "stock" 265/75/16 & compare that to your 245/75/16, it's a diameter of 31+ vs. 30+. So, your 245 is turning more in a mile than a 265, making it appear you are going farther than you really are.

What model came with 245/75/16. I seen S trim with 265/75/16. NON 4X4??

All Base 05 pathfinders (XE) came with 245/75/16. Don't know if newer models did.