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Cadillac STS-V Series Forum Discussion, better mpg in Cadillac V-Series Forums; I got 22.7 mpg on way home doing 75 to 85mph. Not sure if new alternator has anything to do ...
  1. #1
    rbzstsv is offline Cadillac Owners Fanatic
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    better mpg

    I got 22.7 mpg on way home doing 75 to 85mph. Not sure if new alternator has anything to do with it.. But this is best mpg I've gotten.

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  3. #2
    Nimoch's Avatar
    Nimoch is offline Cadillac Owners Fanatic
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    Re: better mpg

    Was this your view the whole time? hah, jk!

    drafting.jpg

  4. #3
    rbzstsv is offline Cadillac Owners Fanatic
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    Only missing my homemade duck tape chain. I got to keep costs down these days.

  5. #4
    rbzstsv is offline Cadillac Owners Fanatic
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    Classy stuff
    Attached Images

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    bigburban's Avatar
    bigburban is offline Cadillac Owners Fanatic
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    Quote Originally Posted by rbzstsv
    I got 22.7 mpg on way home doing 75 to 85mph. Not sure if new alternator has anything to do with it.. But this is best mpg I've gotten.
    That pretty good. This is the best I have gotten but doing 60 on a backwoods 2 lane.

    image-1360354360.jpg

  7. #6
    rbzstsv is offline Cadillac Owners Fanatic
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    That's pretty awesome! Do you have any mods?

  8. #7
    Fierofiend is offline Cadillac Owners Fanatic
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    Re: better mpg

    I think the only time I'll see 27mpg on that thing is as i transition into dfco, lol.

  9. #8
    TimmyC is offline Cadillac Owners Connoisseur
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    Re: better mpg

    22 is what I get on the highway too.

  10. #9
    torched10's Avatar
    torched10 is offline Cadillac Owners Fanatic
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    Re: better mpg

    this is only possile w/o the SC kicking in--so you must have had no boost and were running like an STS

  11. #10
    bigburban's Avatar
    bigburban is offline Cadillac Owners Fanatic
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    Quote Originally Posted by torched10
    this is only possile w/o the SC kicking in--so you must have had no boost and were running like an STS
    Your right was a 50 mile run at 60 mph. Was using cruise control and in 6 gear. My normal mileage is 13 to 17 mpg.

  12. #11
    torched10's Avatar
    torched10 is offline Cadillac Owners Fanatic
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    Re: better mpg

    i average 14.5 on local streets --if ii regilarly get into the boost,it gets 12.5---which is what me new EXT gets all the time.My Gt500 gets 13 and the vette gets 20--but it only weighs 3200 lbs

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