Ballistic

tuffluck

to a point, obviously 350mph is not going to yield good gas mileage for any car. i wouldn't expect 123mph to yield 10mpg though, i would think it would be better.

how did you get 123mph average? even one stop will lower your average mph drastically. seems to me like you'd need to be going a lot faster than 123mph consistently to maintain the 123mph average, and that doesn't seem very safe. most people won't hit 123mph for 1 second in their lives, much less average it over 18 gallons of gas. even if that is 10mpg, it's still what 180 miles going 123mph straight? really? i just don't believe you, but...you live in germany, may have been doing that average on the autobahn, i'm not sure, still seems pretty excessive though. i certainly wouldn't want to drive anywhere near you

Robert A

I'm averaging around 14.7 mpg in city driving on my 2007 530i, and guessing that the MPH is the same as yours.

Incidentally, what were the symptoms that led you to replace the VANOS solenoid and camshaft sensor?

tuffluck

the biggest thing was a check engine light, but symptoms before that light came on included a surging idle at cold starts and also at stop lights sitting idle in D. the rpm's wouldn't increase, but you could feel the car vibrate every 2 seconds while at a standstill.

it is very interesting that you are getting similar mileage in your 530i. i will let you know what this next tank of gas does as far as mpg goes, since it is the first tank after the VANOS swap. i'd like to tell you what idrive says now, but i've got a lot of gas left so it might be skewed!

orlovskyy

dont forget to specify if ur mpg is set to us or uk!!!!!!!!!!!!!!! if its set to uk ur probably 5 mpg better then us!!!!!!!!!!!!!!!!!!!!!!!!!!!!

John@Motorcepts

not sure what my MPH is but my MPG avg 7.6

jaycal3

'04 545i 21.3 mpg and 33.1 mph (us)

tuffluck

cool, thanks guys. keep posting when some of you get the MPH average in on the next tank, M5 included! i also think it's cool if you post and get considerable better mileage on the next tank from what you've posted so far. may have been a fluke with the last tank.

just remember it isn't a contest, it's so people have a reference when they ask the MPG question. for the fun of it, might be cool to see the city you live in, too. you know, to see how chicago traffic compares to socal i'm going to consolidate what we have so far:

530i, 23.2 MPH, 15.3 MPG (member tuffluck, Dallas)
535i, 25.8 MPH, 20.8 MPG (member sheldor535i, SoCal)
545i, 28.7 MPH, 16.1 MPG (member healthservices, SoCal)
545i, 33.1 MPH, 21.3 MPG (member DD_545i, Germany)
545i, 49.0 MPH, 26.0 MPG (member jaycal3, Connecticut)

BMWlou777

09, 535i 34.4 mph , 21.9 mpg!

mwolfe

'08 550i Average speed and milage over about 3 months (I don't reset the trip computer):

35.6 mph
18.3 mpg

I commute 21.1 miles--about 17 miles of freeway.

Interesting note, though. When I do the math and use the number of miles between fill-ups and number of gallons, my mileage is actually better than the computer (0.8-1.3 mpg better). Another thread talked about the computer over estimating the milage--not my experience.