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Old 06-07-2013, 11:37 PM   #11
Gforrest2
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Join Date: Jul 2010
Location: Pacific Northwest
Posts: 308
Quote:
Originally Posted by jsceash View Post
The head gasket is 3ply stainless with Viton around each seal edge. The water pump and thermostat which do not contact any fuel but still are stainless with Viton on the edges. The exhaust gasket stamped stainless. Most other metal surfaces are sealed with a carbonized silicon sealant which also would not react to the E85. Almost every o-rings used in the engine is Viton. They have to be so the synthetic oils do not affect them.
I don't recommend using E85 but it because the octane rating can be 100 to 105. Higher octane means a hotter faster burn. This change ignitions time in relation to engine timing that the engine is not tune for. That increase the possibility of burning a valve or seat.
I thought higher octane burns slower to prevent detonation.
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