Quote:
Originally Posted by alz0rz
That post was not directed at you (hence I did not quote you) and I don't need a 'calculator' to tell me what 30% of a number is. It was more of a PSA for anyone thinking they can just fill up their tank with E85 to get more power.
|
I'm under the impression the rule of thumb is more so 30% ethanol content as opposed to 30% E85 by liquid volume. Considering that standard pump gasoline is already 10% ethanol, the calculator comes in handy.
Quote:
Originally Posted by BLK235iNJ
how do these different mixes affect the engine (e.g. carbon buildup/etc..) ? Just wondering what the risks are.
thanks
|
I don't think carbon buildup is a concern and I have seen nothing indicating it produces more or less than standard gas. There are no real risks when mixing E85 in such low concentrations like this (as in only 4 gallons to our 15.9 gallon tanks). It's effectively 105-110 octane, burns a lot cooler than standard gasoline, and provides for more performance and knock resistance than Sunoco or VP 100-octane race fuel (pretty much the highest level unleaded fuel). It is however more corrosive than gasoline and is significantly less efficient, requiring 25-30% more fuel. This inefficiency is where problems may arise when you are using too much E85 at higher power/boost levels where the factory fuel system will not be able to flow enough fuel.