Is my new '13 TOO fuel efficient?
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This is a discussion on Is my new '13 TOO fuel efficient? within the Everyday Impreza Talk forums, part of the Community - Meet other Enthusiasts category; I have about 750 miles on my 13 WRX hatch, and I normally average around 24.6-25.3 MPG on the trip ...

  1. #1
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    Is my new '13 TOO fuel efficient?

    I have about 750 miles on my 13 WRX hatch, and I normally average around 24.6-25.3 MPG on the trip computer. I filled up this evening and reset the trip computer, and drove like normal. 2 miles in, my avg. mpg started going up to 28 and even topped out around 30.3 mpg, then held steady around 28.5 which has me very suspicious of a potential problem.

    Has anyone else had this weird situation happen before?

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    MAINEiac 11blackSTi's Avatar
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    Yeah. You were probably just coasting a little bit in there which made it look like you were getting really good gas mileage. I have coasted down a hill in neutral before and had that MPG calculation show 99 mpg before.

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    Registered User Kwrxp's Avatar
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    The car can hit 30+ mpg at a steady cruise. Depending on how far you have gone and where you have been driving, 28 is entirely possible.
    '11 WRX DGM

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    have you actually been calculating it manually? and either way, are you complaining that your MPG is TOO good?maybe they switched back to the summer fuel mixture where ever you live/its getting warmer outside.

    i have a '13 hatch and i usually average the same MPG. i filled up yesterday and have driven 200 miles 90% highway at like (70-75) and the computer says 27.0 . usually its 0.8-1.4 higher than i'm actually getting when i do it manually

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    Im not complaining- just wanted to make sure that it wasn't a sign of something wrong. Dont wanna hurt my baby!

    - - - Updated - - -

    It is a bit warmer out- and I have just been babying it until break-in, so it is possible.

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    I'm lucky to get 20 MPG (2012 WRX Hatch) then again I usually do 80 mph all the time...

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    Quote Originally Posted by Jlax2485 View Post
    Im not complaining- just wanted to make sure that it wasn't a sign of something wrong. Dont wanna hurt my baby!

    - - - Updated - - -

    It is a bit warmer out- and I have just been babying it until break-in, so it is possible.
    I have 6400 on mine, i babied mine til 1000, and didn't bring it to 5k til 2500 miles. you gotta let it stretch its legs once in awhile though

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    Quote Originally Posted by 90crxfreak View Post
    I'm lucky to get 20 MPG (2012 WRX Hatch) then again I usually do 80 mph all the time...
    lead foot syndrome?

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    Master Baiter EJ257's Avatar
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    Quote Originally Posted by WREXXY
    have you actually been calculating it manually?
    This

    The MPG calculator on the dash is notorious for being off. Calculate MPG manually based on mileage vs fill-up amount.
    2005 WRX STi (Mods | Virtual Dyno)

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    Quote Originally Posted by EJ257 View Post
    This

    The MPG calculator on the dash is notorious for being off. Calculate MPG manually based on mileage vs fill-up amount.
    I do calculate actual MPG. I was just concerned about the trip calculator strictly speaking. I have taken it above 4K a few times to scare my girlfriend in the passenger seat lol.

  12. #11
    Master Baiter EJ257's Avatar
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    Quote Originally Posted by Jlax2485
    I do calculate actual MPG. I was just concerned about the trip calculator strictly speaking. I have taken it above 4K a few times to scare my girlfriend in the passenger seat lol.
    And what do you get with manual calculations?
    2005 WRX STi (Mods | Virtual Dyno)

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    Quote Originally Posted by WREXXY View Post
    lead foot syndrome?
    its actually called get out of my F'in way, you're pissin me off so I'm going to create as much distance between you and me.

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    Administrator RayfieldsWRX's Avatar
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    Quote Originally Posted by 90crxfreak View Post
    its actually called get out of my F'in way, you're pissin me off so I'm going to create as much distance between you and me.
    If I drive at 80 on the 10 mile highway portion of my commute instead of cruising at 70 with middle-lane and right-lane traffic, it will trim 64 seconds off of my commute. Not worth the stress and extra gas burned.
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    Registered User Phobic's Avatar
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    Quote Originally Posted by RayfieldsWRX View Post
    If I drive at 80 on the 10 mile highway portion of my commute instead of cruising at 70 with middle-lane and right-lane traffic, it will trim 64 seconds off of my commute. Not worth the stress and extra gas burned.
    SCIENCE!

  16. #15
    Registered User wrx1234's Avatar
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    i have hit 32 MPG on 30 mile trip... normal driving im around 21 MPG
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