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your e30 is a gas GUZZZLER!

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  • Chruby99
    replied
    1989 325iX

    with an auto I get 16 in town and 23 on the highway. I am at @ 5000' here in Reno. When I drive out to Sacramento the elevation really effects the power.
    Better than my 97 F350 4x4 9mpg in town and 12 on the highway. The beamer is a sipper as far as I am concerned

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  • 85e325
    replied
    in my eta i normally get 21 city and 26 highway. before i changed my thermostat i was only getting 18 or so in town. has anybody noticed a mpg increase after they have lowered their cars? i have talked to a few different (non e30) people who have said that they noticed a small gain with the cars now lower profile

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  • bmwstephen
    replied
    Originally posted by Kershaw View Post
    it doesnt matter how much your tank holds. you'll never actually put that in, your tank should never be completely dry. not even possible to suck all the gas out of the tank due to the swirl pot. when your car dies you still have gallon or 2 of gas in there. and some e30s have 16 gallon tanks and some 14.

    so... you fill up, let the gas nozzle click off on its own and then drive for a week. you fill up again, let the gas nozzle click off and then take your miles and divide by gallons filled up. it could be 10 gallons you used, or 11. or even 5. w/e. that's how much gas you used.

    dividing the miles driven by the maximum hold of your tank is just stupid.
    i thought we have a counter measure in our tank for the swirl spot. aka the fuel suction hose on late model cars and external fuel pump on early

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  • StereoInstaller1
    replied
    Wait a damn minute...these cars have 5 gears? No wonder it gets such crappy mileage!

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  • SoopaGhetto
    replied
    on my m10, i was getting 33 mpg on the highway but was using megasquirt and had 4.10 peg leg.

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  • Cliche Guevara
    replied
    I get 17-19 in normal daily driving and about 22/23 on the highway doing about 80. It's tough for me to get an accurate mpg estimate because I'm running larger diameter tires than stock.

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  • Threehz
    replied
    Right now I get 25/26 city with a fuel leak, and 34/35 highway with fuel leak. I'm thinking fixing the fuel leak will help quite a bit and I'm leaning towards a MarkD chip which is said to give about a 2mpg gain. Can't be happier after driving my 14mpg Trooper for two years.

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  • E30 331is
    replied
    15mpg city. No hwy, pointless in LA.

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  • jeffnhiscars
    replied
    Originally posted by J308 View Post
    I wonder what effect lightening has on fuel economy?
    probably brutal since Im sure your gas tank would explode :D

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  • CorvallisBMW
    replied
    We have 10% ethanol year-round, but that's it IIRC

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  • smooth
    replied
    don't you guys get that crappy oxygenated gas in Portland? I know in the southern parts like Grants Pass and Medford stations were still advertising they had non-oxy gas but that was quite a few years ago

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  • CorvallisBMW
    replied
    Back in 2008 (2007?) they re-evaluated how the EPA does their testing and all #s were supposed to be revised down. I believe on the website you can see the city/highway ratings using both the old method and the new method (new #s will be lower)

    Oddly enough my '91 525i was rated at 15/23 under the old method of testing, so it should have actually been even lower than that. Yet on the highway I could get 24 mpg on my daily commute. My new '12 Focus is rated at 37 highway but I rarely get over 33, and that's using the new method which is supposed to be more accurate.

    /coolstorybro

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  • Ayman
    replied
    well since you asked, 16.5 -_-

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  • tjts1
    replied
    Originally posted by jaysee View Post
    i used to get 40mpg hwy with my old 91 318i m42 , pretty sure it had a 410 lsd
    LOL yeah sure you did.

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  • jaysee
    replied
    i used to get 40mpg hwy with my old 91 318i m42 , pretty sure it had a 410 lsd
    i live in holland mi and could drive to detroit on a just over 1/4 tank (im pretty sure it had the 14gal tank the drive is almost 200miles, and id steady be going 75-95 (although im sure it was better twords 75

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