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2015 Abarth Automatic - Quest for better MPG cause this is bad - Page 4
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Thread: 2015 Abarth Automatic - Quest for better MPG cause this is bad

  1. #31
    Senior Member aelfwyne's Avatar
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    Hate to engage in thread necromancy ... but....

    I have TWO Fiats.... a 500 Abarth 5 speed and a 500 Turbo auto.

    This thread is correct - there's definitely a huge problem with the automatic cars - at least some of them.

    My Abarth averages 24mpg in mostly city driving. I hammer it constantly, burn rubber off the tires, redline it, you name it. It has a phase 2 tune (but got about the same mileage stock tune).

    My 500 Turbo? I baby the heck out of it and I still can't get more than 17mpg in the exact same driving conditions. Took the tune off to see if it helped - it didn't. Have gone over everything with a fine toothed comb. New oil, plugs, coils, FMIC, O2 sensors, all the typical parts swapping.

    Came here looking to see maybe if anyone had identified a common fault that causes this terrible mileage on the auto.

    It's pathetic.
    2015 Rosso Abarth - MAD FIAT - 5 Speed - Phase 2
    2015 Granito Lucente 500t - Proyecto Estupido - Auto - OFT Stage 1 (No Stage 2 for 2015+ Models)

  2. #32
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    Quote Originally Posted by aelfwyne View Post
    My 500 Turbo? I baby the heck out of it and I still can't get more than 17mpg in the exact same driving conditions. Took the tune off to see if it helped - it didn't. Have gone over everything with a fine toothed comb. New oil, plugs, coils, FMIC, O2 sensors, all the typical parts swapping.

    It's pathetic.
    I have a work colleague that drives a 2015 Abarth automatic. After seeing this topic re-ignited here, I asked him what he's been getting for fuel economy. He said the biggest difference seems to come with light throttle and avoiding application of boost. For example; my colleague said if he's accelerating onto the freeway under boost, and then maintains 5-10MPH over the speed limit, his Abarth gets about 24-26 MPG. If he takes two lane back roads, running no faster than say, 60MPH, he gets around 30-32MPH.
    Even my colleague isn't very impressed with the fuel economy, and believes the combination of crappy aerodynamics and too low-gearing to keep the RPM's high and in the powerband are the cause. The faster you try to push one of these cars through the air, the more drag is exhibited. We were sort of half-joking around to see if we could schedule some wind tunnel time at our Texas office to see how bad the cars really are. He would just have to drive his car to Texas, and I would have to call in some favors with the Techs to run some analysis.

  3. #33
    Lifetime Member Lifetime Member Tramonto's Avatar
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    I have a 2015 Abarth Cabrio with automatic. I have had my car since February of 2018. To date I have put a little over 11,000 miles on it and have logged every tank of gas I bought. 75% of my driving has been in city (Chattanooga) and my city average has been 24mpg. My Hwy mpg has been 32. I am running 16” wheels but will be changing to the Maserati 17” wheels next spring.

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