The difficulties which ethanol and other additives have caused for the
old car hobbyist cannot be overstated. Dealing with ethanol alone is
a real challenge for us, never mind all of the additional additives
which are mandated for different regions of the various states.
It is my understanding that some states have as many as five different
"blends" which must be sold, depending upon the region. The government
claims that no more than ten percent ethanol per gallon is permitted,
but what percentage is then comprised of other additives? Your substantially
diminished fuel economy alone should suggest to you that more than ten
percent of your tankful is something less energy efficient than gasoline.
Typical ethanol/additive problems which can be expected to occur
Fuel pump failure
Fuel hose failure
Failure of epoxy repairs made to carb
Fuel inexplicably gushing from the carburetor
Increased debris in the carb due to ethanol's cleaning/scrubbing characteristics
Some steps which I would recommend that my customers take with ALL of
their carbureted vehicles are:
-- I strongly urge the use of only Gates Barricade brand fuel hose (which
is "approved for 40 different U.S. blends" . . . which should tell you
something about the variable nature of the problem).
No, I do not own stock in Gates Corporation; I just know that their
hoses seem to work. These hoses can be used with crimp-type fittings
for authenticity, and they are virtually indistinguishable form OE.
---- If you must use gasohol, use Ethanol Defense to treat it. You
can buy it on Amazon.com. And no, I don't own stock in Bell Performance
(manufacturer of Ethanol Defense) either.
--Replace/rebuild mechanical fuel pumps at least every ten years.
--Visit the pure-gas.org website below to see whether you have a source
of ethanol-free gas in your area. Remember, just because it contains
no ethanol doesn't mean that it doesn't contain other nasty additives.
Play it safe and follow the above recommendations even if you can find
ethanol-free gas in your area:
Pure Gas Website
FOR OWNERS OF BRONZE OR BRASS CARBURETORS:
Please be certain that your carb is grounded to the
engine, chasis and battery ground of your vehicle. Thanks to ethanol,
serious electrolytic corrision can occur to the carburetor if this is
not done. I've seen it happen to these carbs myself, folks . . .
The Old Carb Doctor