I have a 2008 Toyota Highlander and accidentally filled the fuel tank with unleaded gas that has up to 30% ethanol. Will this hurt the engine (or just make the check engine light come on)?

Asked by Jul 07, 2017 at 11:37 PM about the 2008 Toyota Highlander

Question type: Maintenance & Repair

3 Answers

96,025

30%? I have heard of E15 but never E30. If you really have E30 in your tank I would drain it. If it was just E15 don't worry but don't use it again.

60,695

E-30?, I would drive it and see how it runs. Then at 1/2 a tank I would top off with regular alcohol free unleaded if available or wait till 1/4 a tank and fuel as normal.

1 of 1 people found this helpful.

Thanks, F_O_R and Bob. I was able to reach a local garage where we take our cars for inspection and regular maintenance and they advised using up the 30% ethanol as soon as possible (such as taking a couple of drives to nearby towns) and then replacing with our regular fuel. I was also told to expect the car to run less smoothly and with less power than usual, and not to let the car sit (undriven) for a long period (like three days). Basically, I was advised to run it out.

Your Answer

Highlander

Looking for a Used Highlander in your area?

CarGurus has 42,669 nationwide Highlander listings starting at $2,009.

ZIP:

Toyota Highlander Experts

  • #1
    Wendy Tucker
    Reputation
    4,640
  • #2
    Tom Demyan
    Reputation
    4,140
  • #3
    Shawntele Lewis
    Reputation
    2,490
View All

Related Models For Sale

Used Honda Pilot
583 Great Deals out of 37,480 listings starting at $1,995
Used Toyota 4Runner
335 Great Deals out of 29,410 listings starting at $1,500
Used Toyota RAV4
638 Great Deals out of 62,260 listings starting at $1,995
Used Acura MDX
441 Great Deals out of 13,190 listings starting at $795
Used Toyota Highlander Hybrid
27 Great Deals out of 2,098 listings starting at $3,500
Used Honda CR-V
712 Great Deals out of 62,461 listings starting at $1,495
Used Toyota Camry
1,061 Great Deals out of 77,381 listings starting at $1,100
Used Toyota Sienna
373 Great Deals out of 20,533 listings starting at $1,695
Used Ford Explorer
1,112 Great Deals out of 68,287 listings starting at $1,200
Used Nissan Pathfinder
475 Great Deals out of 23,578 listings starting at $2,495
Used Lexus RX 350
572 Great Deals out of 17,118 listings starting at $5,900
Used GMC Acadia
817 Great Deals out of 44,020 listings starting at $3,500
Used Toyota Sequoia
113 Great Deals out of 4,956 listings starting at $2,499
Used Jeep Grand Cherokee
898 Great Deals out of 71,275 listings starting at $900
Used Toyota Tacoma
550 Great Deals out of 41,421 listings starting at $2,500

Used Cars For Sale

2018 Toyota Highlander For Sale
28,340 listings starting at $28,842
2017 Toyota Highlander For Sale
22 Great Deals out of 1,625 listings starting at $26,198
2016 Toyota Highlander For Sale
88 Great Deals out of 2,224 listings starting at $20,999
2015 Toyota Highlander For Sale
145 Great Deals out of 3,631 listings starting at $18,994
2014 Toyota Highlander For Sale
54 Great Deals out of 906 listings starting at $16,993

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.