Quote:
Originally Posted by MSportX1
Gas consumption is sensitive to your driving style. Some people drive fast and some drive slowly. They get quite different mpg numbers. I think the official EPA is achieved under the conditions that (1) flat land, (2) good whether, and (3) keep constant speed at 50-60 mph. I did some tests on highway. If I (1) frequently push gas and pass everyone that blocks me and (2) never look at the instant mpg needle, I usually get 28-29 mpg. I can alway achieve the official EPA number (33 mpg, my car is xDrive28i) if I strictly follow the following rules: (1) keep constant speed at 60-70, (2) just follow the car in front of you and never pass anyone, (3) constantly look at the instant mpg needle to maximize the instant mpg -- slightly push gas only when speed drops below 60. Spring is coming and whether becomes better, you can try my rules mentioned above to see if you can achieve the EPA number. We cannot say BMW lies because the EPA is achieved under some conditions. Anyway, no matter your drive style is and whether you can achieve the EPA number, X1 is one of best premium crossovers in terms of gas consumption.
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Your doing everything 'wrong' is 28-29mpg, whereas my doing everything 'right' (your 33mpg) is 21 mpg.
This is infuriating. Are you guys really measuring for the entire tank? Or cheating, pressing reset once the car is already up to highway cruising speed? It seems to be a whole different car than mine is. My car has no payload either - it is empty besides just me. What gives?
I could have had a X3 or X5 or X6 for that poor of mileage as 21 mpg. I bought the smallest X1 with 4-cyl N20 to get 33 mpg. At 21 mpg, I'm kicking myself that I didn't buy the more fun V6 3.5 X1.
Not that I don't believe everyone, but I'd love to see some screen shots. From mine you can see that it was 8 hours, 400 miles, 55mph average (is that really too fast??) to get just 21.9 mpg. I can only imagine that your average speed must be lower than mine - 30 mph? Did stopping for gas lower the average where I might have done 90 mph for parts of the trip but did not notice? But still - your WORST mileage is 28 mpg. My BEST mileage is 21 mpg.
I'm due for another long all-highway ski trip shortly, where this time, I will NOT use eco-pro at all and see what it gets me, just for the sake of the experiment.
My suspicion is that my 21 mpg in eco-mode is so horridly poor, that I'd bet no matter how I drive it - even in 100% sport mode - I'm already AT the bottom mpg floor for my car, so won't see any difference.
As for winter tire pressure - I'm already running my tires at 2 psi below their MAX pressure and getting 21 mpg, that can't the the reason in my case. Does my 19" M-Sport wheel-set help or hurt mileage? (Aways suspected wheel size is something of a wash - bigger circumference is more weight but less rotational speed).