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2008-2013 Cadillac CTS General Discussion Discussion, Pleased with gas mileage in Cadillac CTS Second Generation Forum - 2008-2013; 16-18 city & 22 highway based off of comparing actual refills and what was used in between because I never ...
  1. #16
    CTSCHICK's Avatar
    CTSCHICK is offline Cadillac Owners Connoisseur
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    Re: Pleased with gas mileage

    16-18 city & 22 highway based off of comparing actual refills and what was used in between because I never go by the DIC MPG calculations.

  2. #17
    HurstGN is offline Cadillac Owners Enthusiast
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    Re: Pleased with gas mileage

    I was getting rather low mileage until I found the inner front tires were wearing out far faster than they should have. I got a 4 wheel alignment and my mileage (combined) came up to about 20.2 (per the DIC, reading an average speed of 33.x)

    Over the holiday weekend, we took a trip from Pittsburgh PA to Norwalk OH. I reset everything as I got on the highway and we made only 1 stop at a rest area along the way. The highway only part gave 28.5 (per the DIC, reading an average speed of 66.5). I was usually doing the speed limit to 5 above the speed limit, but there was a bit of construction in Ohio, and the troopers were very active in writing up "customers". So I did back it down in the construction areas. Direction didn't matter as I got the same returning to PA.

  3. #18
    TomFont is offline Cadillac Owners Member
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    Re: Pleased with gas mileage

    I've put about 2500 miles on my recently purchased CTS-4 with the 3.6 (22k miles). My normal commute is about 65% highway and I'm only squeaking out 19.5 MPG and I don't have a heavy foot. I'm a bit disappointed because my 2006 AWD Passatt with a 3.6 is only about 300 pounds lighter and got about 26 MPG on the same commute, but to be fair, it required premium gas. I'm going to install a K&N stock replacement air filter. Any other suggestions or thing to check?

  4. #19
    Tbbt is offline Cadillac Owners Enthusiast
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    Re: Pleased with gas mileage

    Tomfont,

    You didn't say what model you have, coupes have a lower final ratio, it can make a difference.

    What tire pressure are you running? Again, makes a difference. Hills? Try driving with your Driver Information Center in the instant mileage mode and watch how much difference there is when going up hill, taking off from a light, etc. It's amazing how much little things do make a difference.

    Welcome and Good Luck, Marv

  5. #20
    C "T" ess's Avatar
    C "T" ess is offline Cadillac Owners Connoisseur
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    Re: Pleased with gas mileage

    I say. Everyone knows CTS's get crappy gas mileage.

  6. #21
    HurstGN is offline Cadillac Owners Enthusiast
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    Re: Pleased with gas mileage

    Quote Originally Posted by C "T" ess View Post
    I say. Everyone knows CTS's get crappy gas mileage.
    Speak for yourself...I didn't know that when I bought mine.

    It's now better than it was originally, so I'm learning to live with it. Now if we can get gas back to a buck a gallon I'd be happy! No lie, yesterday, I saw 1 gas station go from $3.53 to $3.65 in less than 4 hours, and on my drive to work, a station went from $3.59 to $3.61. Gasbuddy reported in the middle of the day, it went up again to $3.65. On the way home 9 hours later, it went up again to $3.69!!

    It's getting brutal to be a CTS owner.

  7. #22
    TomFont is offline Cadillac Owners Member
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    Re: Pleased with gas mileage

    Thanks Marv,
    It's a sedan. I have the 19inch tire upgrade and they're set at 36 PSI. Yes, unfortunately some hills which I understand hurts but what goes up must come down on my 75 mile/day round trip commute.

  8. #23
    EVH5150's Avatar
    EVH5150 is offline Cadillac Owners Fanatic
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    Re: Pleased with gas mileage

    I am getting 21 MPG combined Hiway/City driving. I have also noticed the numbers keep improving the longer I have had the car. I also took all those engine cover pieces off and the car seems smoother in hot city traffic.

    ----------

    21 MPG combined is pretty good for a 300hp+ car that weighs anywhere from 3900-4300LBS.

  9. #24
    popacork's Avatar
    popacork is offline Cadillac Owners Member
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    Re: Pleased with gas mileage

    Update: 26.2 MPG over 4672 miles. Ave. speed 62.4 MPH. Mostly freeway driving with city driving in Mpls., and Quad Cities, IA. (The John Deere Golf Classic was great). 30% oil life remaining at 6664 miles.

  10. #25
    smooth_ride is offline Cadillac Owners Fanatic
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    Re: Pleased with gas mileage

    I did 180 miles down to Cape May, NJ this weekend. I saw 32.7 mpg at 65mph going down -- there must have been a nice tailwind. Coming back I saw 28.7 at 64 mph, very little wind. 47k on OEM tires.

  11. #26
    conedoctor is online now Cadillac Owners Connoisseur
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    Re: Pleased with gas mileage

    I just picked up a 2010 AWD wagon with the 3.0 and coming from an 08 Sierra Denali I think this car is great on gas!

    A member mentioned a K&N filter, this will hurt MPG not help it.
    Built4Comfort likes this.

  12. #27
    Bob Shaw is offline Cadillac Owners Member
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    Re: Pleased with gas mileage

    First fill-up on my 2013 3.0 CTS Sport Sedan was 18.6 mpg. Mostly around town driving. I don't think that's too shabby.

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