x35i mpg

[sirajkas]

What mpg are you guys getting? I am getting 14.5.. Is that normal?

[agmnyc]

17.8/9 in mixed driving over about 5k miles.

[r33_RGSport]

sDrive35i with 18.5mpg with 80% street driving.

[SLCGoonski]

My wife is getting just over 19 in mixed city driving. I always try to bring that number down a bit when I drive... :-)

[sirajkas]

I am getting 14.5 with mixed driving using comfort mode.. Something is not right..

[originalgoods13]

It will get better the more miles you put on her

[greentrbo95gst]

26.4

[greentrbo95gst]

Ooops, wrong engine. 26 for the x5d.

[Zipforia]

19.8 mixed.

Z.

[sirajkas]

am I the only one over here getting less than 15? Did they put a 5.0 engine in mine?

[sand99]

We were getting 16.5 MPG, but turning on start-stop upped it to 17.6. We're still breaking it in though -- 900 miles on the odo. Our dealer had the tire pressures all wrong (our rears were significantly underinflated), I just fixed that Sunday and will observe if that has any impact.

[Artdnj]

I am at 14.4 with 150 on the OD, all sport

[Tommyvee]

14-ish. Only 100 or so miles, mainly in comfort mode.

[iamthestig]

We're getting mid 14s as well. We live in very steep hills which has made a significant negative mpg impact on all our vehicles. We typically get 3-5 mpg less than others with the same vehicles. Since the OP lives in Florida, I'm pretty sure this is not his issue.

[Roundown]

I was getting 22-26mpg once it was broken in, 16-20mpg for the first few thousand miles.

I can only guess that friction in the engine - and more importantly the drivetrain/xDrive - hit mpg pretty hard out of the gate.

[originalgoods13]

21.4 MPG. I remember starting around 17.8 MPG for the first 2 months of ownership. Here is my real-world statistics converted to MPG and miles from trackyourgasmileage.com, 2000 miles are mainly on the highway. I use Comfort in the city and Eco Pro on the highway:

TOTALLED NUMBERS:

Time period Distance driven Volume filled Accumulated cost
Last 6 months 3105.7 Miles 145.15 gallons $734.75
Last 12 months 3481.6 Miles 165.74 gallons $824.07
All-time 3481.6 Miles 165.74 gallons $824.07


AVERAGE NUMBERS:

Time period Distance per fill-up Volume per fill-up Cost per fill-up
Last 6 months 282.3 Miles 13.20 gallons $66.80
Last 12 months 267.8 Miles 12.75 gallons $63.39
All-time 267.8 Miles 12.75 gallons $63.39

MILEAGE:

Time period Best mileage Average mileage Worst mileage
Last 6 months 26.49 MPG 21.40 MPG 15.25 MPG
Last 12 months 26.49 MPG 21.01 MPG 15.25 MPG
All-time 26.49 MPG 21.01 MPG 15.25 MPG

[EIGHTLUG]

Wow, not be be a downer, but those 14'ish MPG numbers are quite atrocious. I live/drive @ a mile above sea level. Our Land Rover LR3 with a 4.4L NA V8 regularly returns 14.3-14.6 MPG in mixed driving. That's a 6,300 pound vehicle (with the family on board), off road tires, roof rack (even less aerodynamic, if that's possible), only 6 gears, lots of hills and mountain driving, and none of that fuel efficient wizardry that an F15 has.

You guys need to have a serious heart to heart with your right foot.

[Overtaxed]

I can't get my V8 400+ HP car to hit 14MPG without winding up in jail. These numbers are shameful, either BMW should be beaten for lying through their teeth or you guys need to have a little heart to heart with your right foot.

[sand99]

LOL. Well in my defense, we're still "testing" the MPPK!

I'm not worried though considering we've had ours nearly 30 days now and we're still in the break-in period. We also don't use Eco Pro, tires weren't inflated properly, and just turned on start/stop for the first time a week ago.

I'm sure it will improve once we're past break-in. Always does.

[42pilot]

Originally Posted by originalgoods13

It will get better the more miles you put on her

Why? Are you talking about the average coming up or the motor actually getting better economy?

[Overtaxed]

Originally Posted by 42pilot

Why? Are you talking about the average coming up or the motor actually getting better economy?

Motors typically improve their efficiency in the first few months/1000 miles of service. They call this process "wearing in", basically, parts mate together better after a few 1000 miles than they did fresh out of the factory. A piston is the easiest part to think about; imagine if the cylinder wall is off by a fraction of an inch causing the piston to rub a little harder than it should on every stroke.. After 1000 miles, the wall or the piston will "mate", instead of rubbing harder every time, they will take on the same shape and will fit together perfectly even though there's a slight imperfection in cylinder wall. The same process happens with bearings throughout the engine, high spots are rubbed down and things "bed in" (another term you'll hear a mechanic use) and fit together better after some run time. This is why you hear some people recommend you change the oil after 1000 miles (the "high spots" that get worn off wind up in your oil), and also why you'll hear old timers tell you to run different oil (break in oil) for the first 1000 miles or so (to help accelerate this process).

This process also increases horsepower fractionally as it occurs, again, things seal together more tightly; more compression, less friction = more HP.

[opasha]

My 5.0i is getting between 14-15mpg with all modes; I haven't checked recently, but it might be better now since I now use Eco Pro a lot. This is also with Auto Start Stop always off. I always ease into my acceleration rather than pedal to the metal- that probably makes a difference. Like @Overtaxed said, you might need to ease off that right foot a little .