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New Prius owner

Discussion in 'Gen 3 Prius Main Forum' started by NPG, Jun 3, 2015.

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  1. CR94

    CR94 Senior Member

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    Source of that information? I'll put up with them full time, if shown good evidence that they make that much difference.

    My current routine is to use them only on long trips, when speeds are generally higher, so aerodynamic drag becomes a bigger factor than in local short trips.
     
    #21 CR94, Jun 26, 2015
  2. NPG

    NPG New Member

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    You are unlikely to find anything other than anecdotal evidence. Anything scientific is going to require strict controls that aren't representative of real word driving. Really the best you can do, as others have mentioned, is try both with and without and see what gives you the best results for your driving style and routine. That does necessarily mean that your results will be indicative of MPG difference for anybody else.
     
    #22 NPG, Jun 26, 2015
  3. DoubleDAZ

    DoubleDAZ Senior Member

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    I've been thinking of doing the same thing, though I'm not sure it's worth the bother. I guess I'd be more inclined to uncover the alloys if mine weren't black.
     
    #23 DoubleDAZ, Jun 26, 2015
  4. law

    law Member

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    I read it somewhere on these forums
     
    #24 law, Jun 27, 2015
  5. NPG

    NPG New Member

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    Here are all the threads google finds for "wheel cover mpg"
    Google
     
    #25 NPG, Jun 27, 2015
  6. CR94

    CR94 Senior Member

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    I'm sure Toyota engineering has either done that test, or else measured the difference in drag and done the analysis to translate that drag difference into fuel consumption difference under specified conditions. I'd settle for knowing the difference in drag coefficient. with vs. without wheel covers.
     
    #26 CR94, Jun 27, 2015
  7. NPG

    NPG New Member

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    These are the responses Toyota gave to others who have asked. One may have better luck asking specifically for drag numbers.



     
    #27 NPG, Jun 28, 2015
  8. CR94

    CR94 Senior Member

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    Thanks, NPG! Love their consistency (and their sloppy dangling modifier, too)! The "possibly" is silly; either removing the wheel covers will definitely "lead to a decrease in fuel economy," or it definitely will not.
     
    #28 CR94, Jun 29, 2015
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