clare at snyder dot ontario dot canada wrote in message
...
On Fri, 13 Jun 2008 10:23:31 GMT, "Vaughn Simon"
wrote:
Why is this not a problem in cars? They can see a considerable temperature
swing between night and day, and I have yet to see a problem caused by
ethanol.
(Not to say it has never happened, it is just not on my radar screen. Educate
me.)

My point is that perhaps we need to be learning from taking a long hard look
at our cars. If cars can be made to run reliably on a gas-ethanol blend, than
so can airplanes, I see no big differences. If differences exist, they have
nothing to do with temperature changes at altitude, since cars see similar
temperature swings without apparent problems.

I see no insurmountable difficulties in retrofitting at least many of our
planes to sealed gas caps and installing a different venting system to the tanks
(if that is what it takes). Nothing in aviation is cheap and I don't predict
that this would be, but it may beat being grounded.

Vaughn