Quote:
Originally Posted by Hawaiian
20k+ miles on E85 with some autox mixed in. No issues.
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How often do you put in E10? Every other tank? Once a month? One time since you initially switched to E85? Or have you literally run only E85 that entire time?
The reason why I ask is because Saab did some pioneering work on turbo [PFI] E85 applications back in the late 2000s. One of the things they found was that running E85 leaves deposits on the injectors, but occasionally switching to gasoline cleans them up very quickly.
Quote:
Originally Posted by coyote
Ethanol is an amazing solvent. If your friends are getting clogged injectors it's probably because the ethanol has dislodged pre-existing deposits.
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Funny you mention that. If you read the Saab paper, they talk about how the deposits were not actually caused by the ethanol portion of E85. They were caused by additives in the gasoline portion. It's weird. Because of the way the fuel supply chain works they could never mix a blend of E85 that didn't have this propensity to cause buildup.
See attached paper, starting on page 29.