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Environment & Energy

hlthe2b

(114,107 posts)

9. Ethanol can be corrosive. And if you want to void a Toyota warranty that specifically says so,

Reply to ffr (Reply #7)

Sun Apr 12, 2026, 02:55 PM

Yesterday

have at it. I will follow what my dealership and my manual indicate. And yes, they point out just how corrosive E15 can be IF the engine is air-cooled and/or to valves, gaskets, rubber lines and rubber parts in general in those vehicles not designed for it. But, do I advise others here to listen to you and your interpretation, rather than their own dealership, owner's manual, car manufacturer and specifically Toyota and the warning given re: my warranty? Umm, no.

YES. Ethanol CAN be corrosive. Basic chemistry 101. YES, the concentration does matter, but to flat out say it cannot is demonstrably FALSE!. If your car and all its parts were not manufactured/designed for the concentration of Ethanol (i.e., 15% rather than 10%) well FAFO.

Please folks. DO your OWN homework on this!

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As E15 Gas Becomes More Common, Remember That It's Terrible For These Engines [View all] mahatmakanejeeves Yesterday OP

Um .... what choice do we have? Like there are E10 only gas stations? /nt bucolic_frolic Yesterday #1

Gemini: Who Enforces the Rules? bucolic_frolic Yesterday #3

Do NOT use in Toyotas. It will VOID your warranty... hlthe2b Yesterday #2

Not sure where the 96 percent from. Old Crank Yesterday #5

Ignoring that discrepancy, to suggest the overwhelming majority of cars manufactured AFTER 2000 hlthe2b Yesterday #8

I have a 2019 VW GTI Autobahn. The owners manual says to use E-free, so that's what I do. ms liberty Yesterday #4

I have been reading some articles by Jalopnik Old Crank Yesterday #6

File this misinformation under, as my dad would say, OH, BULLSHIT! This is a story paid for by the petroleum industry. ffr Yesterday #7

Ethanol can be corrosive. And if you want to void a Toyota warranty that specifically says so, hlthe2b Yesterday #9

Thank you for confirming what I wrote and you appearently didn't read in what I wrote. ffr Yesterday #10

You wrote: "is ethanol harmful to engines. No" hlthe2b Yesterday #11

That is not my opinion, that is fact! Ethanol has no chemical properties in it that harms engines. ffr 23 hrs ago #12

Simply not true. I am not going to argue with someone who ignores basic chemistry and hlthe2b 23 hrs ago #13

You fail to debate correctly. Impeach what I have said and provide references that back up your claims ffr 22 hrs ago #14

No I just don't see you worth my time. Ethanol is inherently corrosive--only a matter of degree hlthe2b 22 hrs ago #15

Once again, you are failing to impeach what I've said. You use a cut-n-paste from a biodieselfoundation.org "blog?' ffr 20 hrs ago #16

Ah yes. "If you can't dazzle them with brilliance, baffle them with bullshit"... hlthe2b 20 hrs ago #17

It took you less than two minutes to read what I wrote and reply with all that? ffr 18 hrs ago #18

This is a tragic turn of events for the world's largest wetland, the Pantanal. NNadir 16 hrs ago #19