Heh, that's pickup truck mileage! I'm at about 5/8 of a tank, 380km so far.

Well, so far, looks like I get a little over 800km per tank.

Per my post 23: 568 miles, best tank I ever got... :thumbup:
I thought you were raving about ~'26 mpg'? ;)

Ain't gonna happen over a tank or tanks.
GL, mD

I've regularly done the 1100 mile trip between Coppell, TX and Spring Hill FL with one gas/restroom stop, 60 miles to E showing on the OBC upon arrival. Actual calculated MPG of over 24 (GPS miles and gals pumped). OBC can be inaccurate.

This is done with the 255-18s all around (my hwy/towing tires, 38 psi pressure), under 75 MPH, following 2 seconds behind 18 wheelers when possible, no AC and windows/sunroof closed.

Stop and go around town I see around 420 miles per tank.

Well, I was doing about 28mpg for a little while... but the average so far has been 832km on 93.2L, which comes out to 11.2L/100km or 21mpg, though this did include 2 traffic jams and some very spirited driving.

I can get 800 km in the X3 on the highway, on 60 litres or so, with the 3.0 engine. Shows that you can't call it hypermiling in an X5.

Hypermiling...

I understand the def, but it is off the mark for most of us X owners, imo.

Few of us drive around with raw eggs under our feet, tires pumped to 45 lbs, skinny azz tires, coasting on downhills, sweating making the next 3 sets of traffic lights, etc.

Fwiw, that 568 I got on one tank was with 19" style 132s fairly wide azz tires, and making a normal haul azz one day drive from our NC Mtn Joint to NJ, to see the kids.

Just happened to catch a cool day with little A/C needed, until we neared the destination. Light traffic, no construction or accidents and few revenue cops for that 650 mile run...

Few of us are driving around in 5,000 lb cars chasing an extra 1/2 mpg to save dough or prove any point...I have more dollars than that under my couch cushions.

I do get a chuckle out of my Vette which can get 30 on some day long cruises, if I am lucky conditions-wise, and does do 28+ all the time on highway driving. But, weight or the lack of, and a very overdriven 6th gear ratio, coupled to a very powerful V8, are the key; not my 'driving'.

A shot I've posted before: a cumulative mpg shot after ~10,000 miles in a cross country trip. The arithmetic per tanks provided for a lower number of ~29+ at that time. I was not doing any 'hypermiling' at any time during that trip. :D

Back to normal driving and reality, here...
GL, mD

The sig Viper saw 26 MPG regularly, double overdrive 6th gear and 3.07/1 final drive ratio.