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Thread: MPG increased to 23 from 19.6

  1. #1
    Join Date
    Jan 2004
    Posts
    1,235

    Default MPG increased to 23 from 19.6

    1990 535 im w/ 3.91 LS diff.

    My long term MPG is 19.6 per the OBC. With gas prices so high I've been driving like my grandma, or "pussy" as Anthony likes to call it (the driving style that is, not my grandma). So if this is "driving like a pussy," I guess my normal style of driving is best termed "driving like a dick."

    After a few days my average is 23 MPG, for an increase of 17% over the long term average from the past few months. If it costs 18 x $2.5 = $45 to fill up a tank, I save $7.80 a fill up. If I fill up every two weeks, that's about $0.55 a day, or a little over a quarter on each way to/from work.

    So the question is, do I pay an extra quarter for the fun experience of really enjoying my 535, or do I save the money and drive like I was in a Volvo 240 DL.

    For that money... I think I prefer being a dick! Driving a hotrod E34 like a hotrod E34 is worth it. I'll just skip Starbucks and come out even.

    - Robin
    Robin

    72 Chevy K10
    01 E39 M5

  2. #2
    Join Date
    Jan 2004
    Location
    Calgary AB Canada
    Posts
    589

    Default

    Driving like a dick: "I paid for 320HP and I'm using all of them, dammit!"

    Driving like a pussy: "I'd drive a Toyota Ecccch-o but it'd be too big a hit to my masculinity."

    Cheers,
    AD

  3. #3
    Join Date
    Oct 2004
    Posts
    3,395

    Default

    As with buying a BMW over any other car, it all comes down to preferences

    And then we're taxed based on how the government and/or society feels about those preferences.

    best, whit

  4. #4
    Join Date
    Dec 2003
    Posts
    1,640

    Default

    Hey Robin...is that mostly highway or ??
    Bellevue WA
    90 535iM - not much stock remains. 3.7 liters, ported head, cammed, 3.73 diffy, M5 brakes, MAFed, yadda yadda yadda
    86 Porsche 951 - Track Toy

  5. #5
    Join Date
    Jan 2004
    Posts
    1,235

    Default About 60/40 highway.

    Quote Originally Posted by Jeff N.
    Hey Robin...is that mostly highway or ??
    The commute is mostly on the freeway, but I usually have to run a few errands during the day which knocks it down a bit.

    It's funny, but one or two hard pulls from a stoplight really ding the average.

    Also, I've got a 3.5 bar FPR, so the OBC reading (assuming it uses pulse duration to calculate fuel delivery) will be optimistic. The 17% still holds, but the absolute miles per gallon are fewer than 23. (Apologies for the liters per km readers here - too lazy to do the conversions!)

    I think I was about one MPG lower on average (18.5 vs. 19.6) before the FPR swap, so maybe my actual MPG when driving like the "penile impared" is closer to 21.8 or something.
    Robin

    72 Chevy K10
    01 E39 M5

  6. #6

    Default

    Or use alternative transportation such as rideshare, subway, etc. to work a few days a week and have fun driving more "spirited" on the other days. I've made it a point to be more efficient on doing more errands at once, choosing to stay closer to home, etc. Its not so much about the money saved, but a matter of principle. If everyone did so, the demand for gas would decrease and that would sting the oil companies just a little bit.

  7. #7
    Join Date
    Feb 2004
    Location
    Philippines
    Posts
    474

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    What's the difference between a porcupine and a BMW?

    -On the porcupine, the pricks are on the outside.


    :P We gotta live up to that joke!!! Hahahahahahaha!

  8. #8
    Join Date
    Mar 2004
    Location
    Cambridgeshire, UK
    Posts
    115

    Default

    Try over $100 to fill the tank... no other way to get to work... which makes it about $200 a month just to get to the office and back.

  9. #9
    Join Date
    Dec 2003
    Posts
    1,640

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    I've always wondered why the M30 gets such sucky mileage. Compaired to modern engines, it's just not very efficient.

    It will be interesting to see if the 3.7 does any better (er..and why would it do that haha).

    Jeff
    Bellevue WA
    90 535iM - not much stock remains. 3.7 liters, ported head, cammed, 3.73 diffy, M5 brakes, MAFed, yadda yadda yadda
    86 Porsche 951 - Track Toy

  10. #10
    Join Date
    Jan 2004
    Posts
    1,235

    Default

    Quote Originally Posted by Jeff N.
    It will be interesting to see if the 3.7 does any better
    Jeff
    Only one way to find out! Any closer to getting that beast built up yet?
    Robin

    72 Chevy K10
    01 E39 M5

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