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Do mudguards affect fuel consumption

Discussion in 'Gen 2 Prius Accessories & Modifications' started by Jolly English Gentleman, Apr 2, 2010.

  1. Jolly English Gentleman

    Jolly English Gentleman Junior Member

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    After a few rainy days, I have noticed that my Prius is really missing what my old Corolla had and that is mudguards. OK I can get a set easily and they only cost a few quid, but I was wandering whether anyone who has added mudguards to a Prius has noticed any change in fuel consumption.
     
    #1 Jolly English Gentleman, Apr 2, 2010
  2. Hopopotamus

    Hopopotamus Junior Member

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    Go for it. I have them on my car and I didn't see any change in mpg. Some people may argue that theoretically will have some effect. I personally don't think it makes any difference..
     
    #2 Hopopotamus, Apr 2, 2010
  3. Rokeby

    Rokeby Member

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    Here's an earlier thread on this.

    For the most part, there is little direct evidence to support the idea that
    mud guards will hurt MPG much.
     
    #3 Rokeby, Apr 2, 2010
  4. BAllanJ

    BAllanJ Active Member

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    They come standard on priuses in Canada.
     
    #4 BAllanJ, Apr 2, 2010
  5. priusincc

    priusincc Member

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    The mudflaps have to reduce MPG because of increased wind resistance, but it isn't easily measured or noticeable. I compensated for the mudflap loss by installing a shark fin antenna, which has less drag than the stock one.

    The next thing to consider is how much MPG loss there is by turning on the headlights?
     
    #5 priusincc, Apr 7, 2010
  6. Rest

    Rest Active Member

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    I'm sure you meant "wondering", not "wandering". But the short answer is no. While yes they do add drag, which does increase fuel use, it is very small and not enough to notice.
     
    #6 Rest, Apr 8, 2010
  7. patsparks

    patsparks An Aussie perspective

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    No change, tyre pressures are way more important.
     
    #7 patsparks, Apr 8, 2010
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