miles per gallon
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500, 472, 425, 368 Discussion, miles per gallon in Cadillac Engine Technical Discussion; Does anybody know how many miles per gallon a 1970 eldorado gets? Other years?...
  1. #1
    rudiroyale's Avatar
    rudiroyale is offline Cadillac Owners Member
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    miles per gallon

    Does anybody know how many miles per gallon a 1970 eldorado gets? Other years?

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  3. #2
    dave383 is offline Cadillac Owners Member
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    Re: miles per gallon

    i have a 69 eldog and a 76 coupe , my 69 gets about 9 and the 76 gets about 11 , so with a high compression 500 i would say around 8-10mpg

  4. #3
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    Re: miles per gallon

    I just bought this car last week and the fuel gauge does not work. BUT, I figured out today, (by filling up and knowing what was left in the tank and how many miles I drove since the last fill up), that the car goes about 7 gallons per mile - city driving. Yikes!
    Here's hoping for lower gas prices SOON.

  5. #4
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    Re: miles per gallon

    beautiful car in your avatar rudi! Hope that's the one you're talking about. Have any full size pictures?

    My 72 Eldo gets right around 8-9 city driving, but i was going really light on the pedal that tank.

  6. #5
    Spyder's Avatar
    Spyder is offline Cadillac Owners Master
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    Re: miles per gallon

    I dunno about the caddy's, but I had a '66 Lincoln Continental that got 6 mpg whether you were running it down the highway at 45, 70, 110 or cruising around town doing burnouts at the local car show. The big 462 was an awesome motor. I just sold a '72 Cad that had the 500, and it got even worse mileage, but it didn't run well at all and needed a lot of work, so that's not a good indicator. Also, my old Dodge 413 Max Wedge gets absolutely horrible mileage...not sure what, but when you hafta run the good stuff and you fill the tank every 150 miles or so, you know its not driven too much.

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    69CDV is offline Cadillac Owners Member
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    Re: miles per gallon

    my dad just drove my 69 coupe down to southern CA from wisconsin... he says he got an average of 11mpg at 55-60mph, and managed 14mpg at 70-75mph

  8. #7
    Night Wolf's Avatar
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    Re: miles per gallon

    I have been getting 12.5mpg in my '79 DeVille.... it sucks.... need to gut the cat and carb needs to be adjusted too...

  9. #8
    Mystical_Ice's Avatar
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    Re: miles per gallon

    6 here. highway is about 12 or 13

  10. #9
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    barge master is offline Cadillac Owners Enthusiast
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    Re: miles per gallon

    We are a sick bunch of people aren't we?

  11. #10
    JTraik is offline Cadillac Owners Enthusiast
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    Re: miles per gallon

    Quote Originally Posted by barge master
    We are a sick bunch of people aren't we?
    Haha its great when you pull up next to one of those hybrid cars with the people that actually have intentions on being kind to the enviroment....and then you rev up the engine and totally defeat the purpose of their car for the day! Guzzlin gas and killin the ozone! At least with my 68

  12. #11
    Tickle Me Eldo is offline Cadillac Owners Member
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    Re: miles per gallon

    A '70 Eldo averages 6mpg... wow! That's worst than exotic V12 sports cars. Mind you, the 500 is bigger than a Viper engine :coolgleam

  13. #12
    rudiroyale's Avatar
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    Re: miles per gallon

    FYI,
    I just posted some bigger pics of my eldo in the galleries. Key words: 1970 eldorado. Check 'em out.

  14. #13
    billsif is offline Cadillac Owners Member
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    Re: miles per gallon

    anyone have any idea what the best speed to drive these cars on the highway for maximum mpg is? i have a '72 deville with 8.5:1 compression.

  15. #14
    JTraik is offline Cadillac Owners Enthusiast
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    Re: miles per gallon

    Quote Originally Posted by billsif
    anyone have any idea what the best speed to drive these cars on the highway for maximum mpg is? i have a '72 deville with 8.5:1 compression.
    Oh god...my 68 definitley likes going 75. Foot barely on the gas...cruisin right along...like a freight train!

  16. #15
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    Re: miles per gallon

    Quote Originally Posted by JTraik
    Oh god...my 68 definitley likes going 75. Foot barely on the gas...cruisin right along...like a freight train!

    He he. I know that freight train feeling... "Get out of my way!! This car weighs almost 5000 lbs!!" At least she's got disc brakes... whew.

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