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Like the title say. Does the 955 957 pretty much the cayennes' line up support E85? I saw some tuner support E85 and with a lot of the station popping up around the city. I'm wondering if we could just fill up our cayenne with E85 and it would be ok to run with it or do we have to do modifications to fully support it. From my search on the injectors it seem they support E85 but not sure about all the other fuelling system.

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No they do not. The high alcohol content will damage the fuel system.

PS. You think you get bad gas mileage now! E85 will yield 30-50% worse mileage. It's a lousy alternative fuel source...

Edited by jagman1
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There must be an intervention in the engine management as well, ignition timing, injection etc. Porsche does not permit such conversions, any kind of reponsibility shall cease.

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