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Old 09-03-2011, 06:29 AM
NNY528i NNY528i is offline
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Location: Amsterdam, NY
 
Join Date: Mar 2006
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Mein Auto: 1997 528i
Quote:
Originally Posted by cn90 View Post
I read somewhere on the internet that 10% ethanol can be harmful to the fuel delivery system in any cars, but the evidence is anecdotal and I am not convinced that 10% ethanol is bad.

Does anyone have any hard evidence (preferably scientific study) that says 10% Ethanol is bad for the seals etc.?

All of my cars at home have been running on 10% Ethanol gas for the last 10-14 years, zero issues (or maybe I don't know yet). In 95% of the time, I pump 89 Octane (with 10% Ethanol in there).

Any Ethanol expert here?
Well, everyone is an expert on the internet LOL (j/k).
That's curious as Ethanol only really came into use in california starting in 2003 but didn't see wide use until after 2006 with the renewable fuels act. which means you car has been running on E10 for far less than 10-14 years and more likely for about 5 years.
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