Thinking about buying an X5

[carlgo]

Originally Posted by cobra94563

I just got an '05 4.4. x5 + sport. Gas mileage after 2 tanks is ~18.9mpg with 50/50 city/hwy. I think on the hwy, 21+ is probable at 65mph. So I'm pleased.

But I've been driving conservatively to see what kind of mileage is achievable. I think in town, driving move aggressively, I wouldn't be surprised if it is 15-16. I see a wide variation in hwy mpg, and I think how fast you cruise is a big factor. The X5 is not very aero - the most efficient (abit boring) speed is slower.

I forgot to mention that in my post. Yes, speed is huge with these vehicles. My first long distance trips were done at fairly legal speeds, lots of vehicles going by, and the mileage was over 22. When I went 75-80, and the speed crept up from there, oh, once or twice, the mileage is just over 20. So, almost 2.5 mpg less by going maybe an average of 8 mph more.

I think the aerodynamics must be terrible. Of course, all sorts of things get into play at higher speeds as well.

The mileage people are right about speed, but...