mud guards vs. fuel economy - Toyota Yaris Forums

fenerli · 11-24-2010, 02:34 PM

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)

Reeves360 · 11-24-2010, 04:58 PM

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.

sickpuppy1 · 11-24-2010, 09:42 PM

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.

.Kevin. · 11-25-2010, 01:50 AM

Mine has it I still get 1000kms monthly and only fill up twice a week

Freedan · 11-25-2010, 05:46 AM

You fill your tank twice a WEEK!!!?

EckoDG · 11-25-2010, 11:23 AM

he might have a 2 gallons tank xD

.Kevin. · 11-25-2010, 01:26 PM

Sorry meant to say twice a month lol as in every two weeks.

Yar Is Word · 11-25-2010, 02:50 PM

A number of articles here:
http://ecomodder.com/
Depends on the design but generally the consensus is that they take away a little mpg.

3dr5speedblk · 12-17-2010, 04:19 PM

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!!

brg88tx · 12-17-2010, 06:22 PM

anyone know if you have to remove the wheels and tires to install the yaris mudflaps (clearance for screwdriver)?

3dr5speedblk · 12-27-2010, 03:04 PM

Quote:

Originally Posted by brg88tx

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.

20104dr · 01-06-2011, 01:22 AM

i fill up mine up to three times a week, but atleast twice!

henry33 · 01-06-2011, 03:53 AM

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 :(

3dr5speedblk · 01-06-2011, 04:13 AM

Quote:

Originally Posted by henry33

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!

fenerli · 03-15-2011, 01:26 PM

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.

MickZEL · 04-10-2011, 11:59 AM

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)

*Astroman* · 04-10-2011, 02:10 PM

Quote:

Originally Posted by fenerli

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.

MickZEL · 04-15-2011, 02:25 PM

Guys help me with the number of parts (Fenders) Is in America do not enjoy the mud flaps on the Yaris sedan

11-24-2010, 02:34 PM	#1
fenerli Drives: '10 Yaris Sedan Join Date: Nov 2010 Location: NJ-NY Posts: 7	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)

11-24-2010, 04:58 PM	#2
Reeves360 Drives: 09 Yaris Sedan, 91 ToyotaTruck Join Date: Mar 2009 Location: Olympia, WA Posts: 132	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.

11-24-2010, 09:42 PM	#3
sickpuppy1 Drives: 2010 Yaris Sedan Join Date: Feb 2010 Location: Kansas Posts: 871	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. __________________

11-25-2010, 01:50 AM	#4
.Kevin. I ain't even mad Drives: 2010 1E7 Toyota Yaris Sedan Join Date: Sep 2010 Location: Prince George, BC. Canada Posts: 954	Mine has it I still get 1000kms monthly and only fill up twice a week __________________

11-25-2010, 01:26 PM	#7
.Kevin. I ain't even mad Drives: 2010 1E7 Toyota Yaris Sedan Join Date: Sep 2010 Location: Prince George, BC. Canada Posts: 954	Sorry meant to say twice a month lol as in every two weeks. __________________

11-25-2010, 05:46 AM	#5
Freedan Drives: 2010 Yaris Bayou Blue 3DR Lift Join Date: Sep 2010 Location: San Diego, CA Posts: 150	You fill your tank twice a WEEK!!!?

11-25-2010, 11:23 AM	#6
EckoDG Banned NOT! Drives: Car Join Date: Jan 2010 Location: Z Posts: 844	he might have a 2 gallons tank xD

11-25-2010, 02:50 PM	#8
Yar Is Word Drives: Yaris 5 door liftback Join Date: Jan 2009 Location: Portland, OR Posts: 648	A number of articles here: http://ecomodder.com/ Depends on the design but generally the consensus is that they take away a little mpg.

12-17-2010, 04:19 PM	#9
3dr5speedblk StickShift Drives: 2010 Yaris HB Join Date: Nov 2010 Location: Minneapolis Posts: 112	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!! __________________ "Live like there's no tomorrow"

12-17-2010, 06:22 PM	#10
brg88tx Drives: 07 Yaris Sedan, Auto Join Date: Jun 2010 Location: SE Texas Posts: 327	anyone know if you have to remove the wheels and tires to install the yaris mudflaps (clearance for screwdriver)?

01-06-2011, 01:22 AM	#12
20104dr CLIFF View User's Garage Drives: 2010 4dr Join Date: Apr 2010 Location: la verne,ca Posts: 81	i fill up mine up to three times a week, but atleast twice! __________________ "who the cap fit let them wear it"

01-06-2011, 03:53 AM	#13
henry33 Drives: yaris1.33 Join Date: Jul 2010 Location: slovakia Posts: 425	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 :(

03-15-2011, 01:26 PM	#15
fenerli Drives: '10 Yaris Sedan Join Date: Nov 2010 Location: NJ-NY Posts: 7	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.

04-10-2011, 11:59 AM	#16
MickZEL Drives: Yaris sedan Join Date: Apr 2011 Location: Russia,Moscow Posts: 246	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)

04-15-2011, 02:25 PM	#18
MickZEL Drives: Yaris sedan Join Date: Apr 2011 Location: Russia,Moscow Posts: 246	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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