E53 X5's real Gas mileage - POLL

[Naz24]

Yikes. My read out of 15.0 and 15.1 on my obc looks terrible. 2004 4.4i

Then again, I drive around campus up hills, and 3 hour drives back to nj.. At no lower than 80mph. Thatll do it

[phil47]

2005 4.4 Sport (driven like I stole it)
15 City
21 Highway

From what I'm seeing the 3.0 doesn't get any better mileage yet gives up significantly in the power dept.

[roym01]

I get over 600 kilo's on a tank (2005 4.4), combined city/hwy. My buddies 2006 3.0 has never gotten more than 550.

I was told long before I started searching for my 2005 that the 8 gets better mileage than the 6. Should be no surprise.

[MiCkEy]

16.2 in city/mixed driving and 24 on highway. The truck sits on 20" wheels though.

[Ghost-Flame]

Originally Posted by MiCkEy

16.2 in city/mixed driving and 24 on highway. The truck sits on 20" wheels though.

Do larger wheels improve your mileage? because that is 15% better than what I'm getting on stock wheels.

[Tripz]

Originally Posted by Ghost-Flame

Do larger wheels improve your mileage? because that is 15% better than what I'm getting on stock wheels.

The 20" wheels should be heavier and therefore requires more power to push them. Assuming the diameter of the wheel/tire combo, you should be losing some mileage on larger wheels (if their heavier)

[skeetjunkie]

21mpg combined

[jbny]

18.5 mpg combined - 2005 4.8is

[DSAviate]

'01 3.0 Manual 50/50 city/hwy and 100 miles per month tractor duty pulling 6000# load.

2 year average - 18.6 mpg.

Regards - M54 Lover

[SlickGT1]

10.6mpg on OBC

2006 4.8is

Mostly City driving. Just had alignment done. Didn't reset the OBC yet. BTW, how do I reset it anyway?

Going to do plugs, clean Maf, new air filter, and run some injector cleaner. We will see. Only had the car about a week. So need to do some maintenance.

But yea 10.6mpg sux. Glad I know where to get more fuel. lol.