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Old 11-24-2010, 02:34 PM   #1
fenerli
 
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mud guards vs. fuel economy

Does mud guards/flaps hurt fuel economy? I mean I got my Yaris for the fuel savings and don't want to put on mudflaps if it's gonna lower my mpg (even by 1-2 mpgs)
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Old 11-24-2010, 04:58 PM   #2
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Yaris Mud Flaps

I do know from my friend that's a Toyota mechanic that the Prius will suffer a mile or two a gallon hit in fuel economy if a customers car looses a mud flap. I'm guessing that since the two cars are very similar and aerodynamic that OEM mud flaps wouldn't do anything except help MPG.

I've been wanting to get some so that I could test this theory out.


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Old 11-24-2010, 09:42 PM   #3
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I would have to say no, due to the fact that they are behind the wheel. Any "scoop" effect they would have is probably negated since it is behind the wheel and the air disturbance of the wheel just flows around it.
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Old 11-25-2010, 01:50 AM   #4
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Mine has it I still get 1000kms monthly and only fill up twice a week
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Old 11-25-2010, 05:46 AM   #5
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You fill your tank twice a WEEK!!!?
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Old 11-25-2010, 11:23 AM   #6
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he might have a 2 gallons tank xD
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Old 11-25-2010, 01:26 PM   #7
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Sorry meant to say twice a month lol as in every two weeks.
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Old 11-25-2010, 02:50 PM   #8
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A number of articles here:
http://ecomodder.com/
Depends on the design but generally the consensus is that they take away a little mpg.
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Old 12-17-2010, 04:19 PM   #9
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Just ordered a set!!

I think it would be minimal,Just ordered a set from Sparks for $35 bucks!
Should help with the salt and sand mix that flies up off the roads here!!
Hard to keep your car clean here now. I just gave up!!
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Old 12-17-2010, 06:22 PM   #10
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anyone know if you have to remove the wheels and tires to install the yaris mudflaps (clearance for screwdriver)?
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Old 12-27-2010, 03:04 PM   #11
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Mudguards came today from Sparks Toyota!!

Quote:
Originally Posted by brg88tx View Post
anyone know if you have to remove the wheels and tires to install the yaris mudflaps (clearance for screwdriver)?
Got the fronts on EZ, the holes are predrilled for the front on my 10'
Looks like the rear wheels have to come off! have to drill two holes for each rear mudguard! the fronts seem to help a little!
waiting for warmer weather to do the rears.
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Old 01-06-2011, 01:22 AM   #12
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i fill up mine up to three times a week, but atleast twice!
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Old 01-06-2011, 03:53 AM   #13
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I have still the same MPG also with mud flaps but maybe in summer it will go down since cold weather ( below zero) hurt MPG a lot :(
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Old 01-06-2011, 04:13 AM   #14
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Quote:
Originally Posted by henry33 View Post
I have still the same MPG also with mud flaps but maybe in summer it will go down since cold weather ( below zero) hurt MPG a lot :(
cold here too!! really kills my gas mileage!! below zero at night,
I leave my car idle all the time to keep it warm. got around 30MPG last tank full!
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Old 03-15-2011, 01:26 PM   #15
fenerli
 
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Update...Got the mudflaps installed for free by the dealer ~10k miles and ~2 months ago and I haven't seen a difference, consistently 34-38 mpg (depending on load and temperature) and I'm not babying it either.
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Old 04-10-2011, 11:59 AM   #16
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hi all I'm from Russia bought yris sedan 2007 looking mudguards to protect the car from the mud in Russia these little cars they do not deliver official. Can someone give a reference number that I found in Russia

If anyone speaks Russian would be grateful for assistance (online translator taxis)
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Old 04-10-2011, 02:10 PM   #17
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Quote:
Originally Posted by fenerli View Post
Update...Got the mudflaps installed for free by the dealer ~10k miles and ~2 months ago and I haven't seen a difference, consistently 34-38 mpg (depending on load and temperature) and I'm not babying it either.
Nice they did it for free. My dealer wanted to charge me $150 to do it. I said no, and did it myself in 15 minutes in the garage.
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Old 04-15-2011, 02:25 PM   #18
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Guys help me with the number of parts (Fenders) Is in America do not enjoy the mud flaps on the Yaris sedan
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