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Thread: 70 mph

  1. #11
    Senior Member GrnBn's Avatar
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    Don't you mean "drag kills"? The Aerocivic guy said his car could potentially go crazy fast(relative to its funky look and 'puny' motor) due to how little drag it generated. Granted, drag/resistance increases relative to speed, but we could cheat that a bit with a more streamlined car, right?



  2. #12
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    I have a brand new 2017 5 speed. Should i be avoiding 70 mph for break in? At 70mph i'm getting about 41mpg so it still seems good.

    Texas the speed limit IS 70mph so it's hard to do less. I've hit 75, but not 80. I'm not used to being at 4k for 80.

  3. #13
    Moderator inuvik's Avatar
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    Quote Originally Posted by jscv0341 View Post
    I have a brand new 2017 5 speed. Should i be avoiding 70 mph for break in? At 70mph i'm getting about 41mpg so it still seems good.

    Texas the speed limit IS 70mph so it's hard to do less. I've hit 75, but not 80. I'm not used to being at 4k for 80.
    No, you're fine. 4K is torque peak for the 3a92. I don't think you have anything to worry about. I'm not a huge fan of 0w20 oil. If you look at viscosity values at 100C compared to 5w30 there is a huge difference. It's why I switched with no loss in MPG's and the valvetrain has way less "sewing machine" noise lol

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 automatic: 40.7 mpg (US) ... 17.3 km/L ... 5.8 L/100 km ... 48.8 mpg (Imp)


  4. #14
    Senior Member palebeachbum's Avatar
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    I've noticed my car seems happier cruising at 70 than at 65. I've got the CVT. It revs very low relative to the manual trans, but it doesn't sound like I'm getting any better fuel economy even though my engine is revving lower. I seem to get right around 41 miles per gallon on the highway doing 65 to 70mph. The Nissan Versa I traded in actually got better fuel economy than my Mirage. 44mpg at 70. It's a bigger car with more power, so I'm rather disappointed with the highway fuel economy in my Mirage. It's definitely best suited for around town driving, where I averaged 39 - 41 miles per gallon.

  5. #15
    Senior Member Cani Lupine's Avatar
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    I'm hovering at about 50 MPG at 70 with my current aero setup. Manual trans.

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage DE 1.2 manual: 49.2 mpg (US) ... 20.9 km/L ... 4.8 L/100 km ... 59.1 mpg (Imp)


  6. #16
    Moderator Eggman's Avatar
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    Quote Originally Posted by Cani Lupine View Post
    I'm hovering at about 50 MPG at 70 with my current aero setup.
    That's pretty good. I don't think I could do that.


        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.6 mpg (Imp)


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