Rich S. wrote:
Make that last idea a *must*, Dave. You don't know what you are
getting out
of a strange mogas tank. It may be 100° out and that mogas could've been
sitting in the tank since winter. My commandments read:
1. Never use mogas from an unfamiliar source.
2. Always test for alcohol.
3. Never use mogas above 5,000' density altitude.
4. Always check for water.
5. Never use mogas above 80° F.

Remember - 100 LL can foul a spark plug. Mogas can boil, give you vapor
lock, and stop your engine RFN. Which would you prefer? Would you like fries
with that?

Rich S.

Dude... I'm using mogas because I'm using a MO-engine. I've driven cars
at over 5000 ft (Lake Tahoe.. 9000 ft) MSL.. and in temps over 100* F...
and alcohol wont hurt MY engine because the seals in it and the fuel
system are DESIGNED to use motor gas in all of its domestic
forumulations. I think some of those "absolutes" you are listing are
overkill.

I will be using fuel injected engine with an automotive fuel rail
regulated at 40 PSI over upper deck pressure..through a recirculating
fuel circut with firesleeved hoses. I don't think vapor lock is gonna be
the issue here. I'm just planning on using 100LL because I dont want to
land on a 2000 ft sod strip 40 miles from the nearest town of over
50,000 people. I'm into flying to travel to where the people are