Under-Carriage Plastic Protection Came Off; Could that Affect Gas Mileage?

Asked by Jun 28, 2016 at 04:44 PM about the 2009 Toyota Prius Base

Question type: Maintenance & Repair

I accidentally scraped the underneath front part of my Prius on a cement block at a parking lot; partially ripping off the plastic piece that covers the motor. I guess it's there to protect the motor from such scratches and dents. Anyway, I took the plastic piece off because it was dragging on the ground. Ever since then I've noticed that my gas mileage has been terrible. Down to 34 mpg instead of 42-45. Could there be any relation? Maybe the under-carriage cover helps the car's aerodynamics? Any thoughts would be appreciated.

2 Answers

24,065

air flow under car not as clean more drag and less air thru front grill cooling....but not enough to worry about....get a new on or a used one..and change the sparkplugs and add a bottle of ZMAX gas treatment to the fuel tank...........

12,115

Probably pulled the HEGO wires off the sensors or damaged them, Have it read for codes, even if the check engine light is NOT on the computer will have stored information and codes. Discount auto stores will read codes for no fee. write them down.

Your Answer

Add photo

Related Questions

Search Toyota Prius Questions

Toyota Prius Experts

#1 raae
raae
Reputation 610
#2 TupeloMS
TupeloMS
Reputation 580
#3 jrdregs
jrdregs
Reputation 400
View All

Related Models For Sale

Used Toyota Camry
1,001 Great Deals out of 90,918 listings starting at $650
Used Toyota Corolla
781 Great Deals out of 73,830 listings starting at $1,995
Used Honda Civic
657 Great Deals out of 88,603 listings starting at $995
Used Honda Accord
813 Great Deals out of 84,287 listings starting at $1,050
Used Toyota RAV4
740 Great Deals out of 71,773 listings starting at $1,895
Used Honda Fit
102 Great Deals out of 17,409 listings starting at $1,995
Used Toyota Yaris
103 Great Deals out of 4,833 listings starting at $2,400
Used Honda CR-V
897 Great Deals out of 61,170 listings starting at $988
Used Ford Fusion
1,119 Great Deals out of 83,259 listings starting at $998

Used Cars For Sale

2017 Toyota Prius For Sale
7,851 listings starting at $20,739
2016 Toyota Prius For Sale
6 Great Deals out of 1,012 listings starting at $15,800
2015 Toyota Prius For Sale
27 Great Deals out of 1,105 listings starting at $10,999
2014 Toyota Prius For Sale
40 Great Deals out of 1,672 listings starting at $8,981
2013 Toyota Prius For Sale
16 Great Deals out of 1,001 listings starting at $5,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.