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      06-17-2012, 11:25 PM   #5483
benzy89
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Drives: '08 E90 335i
Join Date: Jan 2012
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2008 BMW 335i  [7.50]
Quote:
Originally Posted by Lulz_M3 View Post
The tank is not an issue, its the fuel injectors. Over on another forum, an engineer traded a few emails with one of the lead design engineers for continental(designed the N54 fuel system). Here are his remarks;

"Have you experience with this engine and E85 fuel or do you have any thought on it ? Can e.g. the injectors handle alcohol ?
We have a lot of experience with E85. Currently, we have an issue that if the injector is hotter than 100 Celsius, we are seeing melting of the fuel filter in the injectors. As long as the temperature of the injector stays under the 100 Celsius, this engine is perferctly capable to run E85. As a matter of fact, it will run E100 without any problem under cold conditions. There is no need to preheat the fuel.
He said that in their testing, E85 caused damage to the fuel injectors when used in high concentrations and the engine was at high temperatures."

This is good to know -- So as long as you're running a reasonable E85 blend (less than 40%) and not ripping on the car it should be fine. Lulz, no idea if you'd know this but does anybody know how hot do the fuel injectors get w/ pump gas or even race gas (100 octane)??
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