E10 problems in a nutshell (the size of an F350 cowl).
1. Doesn't mix well with non ethanol fuel.
2. Cleans fuel systems unlike non-ethanol fuel, including the trucks that deliver it and the stations that dispense it. Newer boats should have cleaner fuel systems to begin with - so more of a problem for older boats.
3. Possible alcohol overdose at mixing facility. Good luck trying to prove it.
4. E10's alcohol has affinity to absorb moisture in air or other, like scott towels to a water spill. Use additive that combines water for burning and high turnover in fuel usage. Additives good for maintenance amounts of moisture, not gallons of it (read EZORB instructions).
5 High moisture in fuel can cause phase seperation where alcohol and water combine and seperate from gasoline, oil stays in gasoline. Not good for two stroke premix or VRO type systems. Existing fuel systems are prone to this since water will seperate and stay at bottom out of trouble year after year, until alcohol comes along. Loss of power at the minimum, new powerhead at the max.
6. Degrades faster than non-ethanol fuel, requiring use of stabilizers for low use end users - all year long not just off season.
7. Doesn't produce same amount of power per given gallon since alcohol is less powerful than gasoline, in same quantity. This is effectively a hidden price increase. Has nothing to do with octane rating. In cars, less mpgs reported.
8. Due to the processes of production where alcohol is added later, fuel production costs have increased.
9. Engine design and warranty good at 10% ethanol, not the higher mixes
like E30 that some state is suing over.
10. Disoolves resin in old fiberglass tanks in Bertrams and others, gums up valve stems, loss of RPM, engine rebuild for marina mechanics. Racors useless to stop resin pass through. New alum tank or glass tank relined before marina will put fuel in boat.
11. Can't think of anything else. It's plenty. Had enough?
