ethanol in gas bad for our cars?

Could you extrapolate considerably on why mixing oil with gasoline counteracts or augments the alcohol init? I generally understand that oil is dissolved by gasoline and i suppose it is dissolved by the alcohol in gasoline too.

Alcohol has a low vapor pressure for its molecular weight but when mixed with petroleum the solution has a higher vapor pressure because the petroleum prevents the alcohol molecules from adhering to one another to to blocked polar bonds. Does the oil help abate this issue?
Is the advantage of oil additive because it adds lubrication properties to your fuel injectors or pistons or valve guides? Is this a desired effect because alcohol reduces the lubricity of petrol fuel?
Does it prevent alcohol from attracting water? Does it increase the caloric content of the fuel? How much oil are you considering to reach what type of result?

This is quite an interesting thread here.

Also, I may just go out to my 21hp kohler craftsman lawnmower and put in a bottle of 2 stroke oil to celebrate this Saturday fuel discussion. At least if nothing else my rings will be lubed and my plugs will be fouled. Oh yea, and the coal will roll!

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340-4spd said

Apparently what you believe and what I know appear to be 2 different things. That's OK, we are free to disagree. But the fact is (no beliefs here, just pure fact) ethyl alcohol's vapor pressure runs around 1-1.5, depending on the specific variety in question. Oil's generally speaking, are 0.

That's one of the cool things about chemistry - when you mix different stuff sometimes their physical properties change.

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