1. Excess heat - ethanol burns hotter than petrol, thus more heat to dissipate...
Might want to check your facts on that.
http://www.hho4free.com/gasoline_vs_ethanol.htm
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1. Excess heat - ethanol burns hotter than petrol, thus more heat to dissipate...
This can be somewhat confusing. Ethanol doesn't actually burn hotter, but it can cause an engine to run hot. If you don't have a closed loop fuel metering system (like EFI with an O2 sensor) The engine will run leaner than intended with an Ethanol blend fuel. The higher the ethanol percentage, the leaner it runs and the leaner it runs, the hotter it runs.
This can be somewhat confusing. Ethanol doesn't actually burn hotter, but it can cause an engine to run hot. If you don't have a closed loop fuel metering system (like EFI with an O2 sensor) The engine will run leaner than intended with an Ethanol blend fuel. The higher the ethanol percentage, the leaner it runs and the leaner it runs, the hotter it runs.
Even gaskets designed to "tolerate" ethanol may survive much longer with e10 than e?? though any gasket chemically formulated to be doused in the cocktail of petrol (aromatics and aliphatics) might not behave well if put into alcohol
.
water will naturally adhere to ethanol from the atmosphere. More ethanol --> more water, less combustion, yadda yadda yadda.
too many variables, especially since e10 is rarely 10% ethanol as it is. If the fudge factor for e10 is +5% /- 1%, imagine how much it gets to be with e15. They aren't allowed to go below the ethanol content, but they can go above.
That's exactly one of my points. The fuel systems are already designed to tolerate alcohol in the mix. How likely is it the designers of those systems specified for an absolute max at 10%. O rings, gaskets, seals, plastic parts, etc. that will survive 10% will fail at 15%? Not likely IMO.
Here you're talking about variables and contaminants and they can never be accounted for. Modern fuel systems are isolated from the atmosphere so water take up by the ethanol should not be significant.
... It may have already been on the edge and 5% more ethanol may push it over.
I finally clicked on the link for "pure-gas" then BC, the province I live in. I guess I can believe that ALL Shell 91 octane contains no ethanol in my home province. If true, that is good to know as my bike supposedly prefers "premium."
I guess I can also believe that ALL Chevron 94 octane contains no ethanol in BC. (NO other stations offer 94 octane in BC.)
What I found unbelieveable was that the 100 Mile House Chevron (this is a very small town well away from population centers) ALONE offers ethanol-free gas in 87, 89, and 92 octane! They send a truck (or is that FOUR trucks, one for each octane?) to service the discerning folk in this small town?
Somebody help me out here.
Actually, E15 has 50% more ethanol than E10.
What I have been told is that the driver mixes the ethanol in at time of delivery. The tanker truck has multiple compartments with different octanes and 100 % ethanol.
Remember to thank the owner of the station from which you purchase pure gas.
Steve
It has made land owners rich. Land in our area that was selling for $3,000 an acre before ethanol is now worth $14,000.
If you took the government ethanol subsides away that big companies and farm organizations lobbied for, it would not be profitable and would go away.
Let's hope.
What I have been told is that the driver mixes the ethanol in at time of delivery. The tanker truck has multiple compartments with different octanes and 100 % ethanol.
Remember to thank the owner of the station from which you purchase pure gas.
Steve