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

20,175

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...........

11,365

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 600
#2 TupeloMS
TupeloMS
Reputation 550
#3 jrdregs
jrdregs
Reputation 380
View All

Related Models For Sale

Used Toyota Camry
1,095 Great Deals out of 96,233 listings starting at $1,250
Used Honda Civic
663 Great Deals out of 77,395 listings starting at $1,000
Used Toyota Corolla
874 Great Deals out of 74,397 listings starting at $1,500
Used Honda Accord
814 Great Deals out of 81,559 listings starting at $899
Used Toyota RAV4
643 Great Deals out of 61,985 listings starting at $2,450
Used Honda CR-V
814 Great Deals out of 59,334 listings starting at $1,200
Used Honda Fit
137 Great Deals out of 21,489 listings starting at $2,900
Used Toyota Yaris
89 Great Deals out of 13,107 listings starting at $1,745
Used Ford Fusion
1,062 Great Deals out of 78,340 listings starting at $1,250
Used Mazda MAZDA3
251 Great Deals out of 29,978 listings starting at $895

Used Cars For Sale

2017 Toyota Prius For Sale
11,458 listings starting at $20,995
2016 Toyota Prius For Sale
19 Great Deals out of 1,913 listings starting at $16,599
2015 Toyota Prius For Sale
29 Great Deals out of 1,094 listings starting at $8,700
2014 Toyota Prius For Sale
33 Great Deals out of 1,151 listings starting at $8,999
2013 Toyota Prius For Sale
60 Great Deals out of 1,446 listings starting at $5,995