E10 Ethanol Fuel
In Oregon all gasoline is with 10 percent ethanol also known as EI0 gas.
The only exception is Everclear premium that is sold at some
stations for cars older than 25 year.
Alcohol is an
excellent cleaner, solvent, anti-freeze and most important, ethanol
is hygroscopic, meaning it will absorb large amounts of water.
This may be great news for the
environment, but the Oregon Marine Board points out there's a
potential glitch for boat owners. The problem is ethanol is a
solvent, and will loosen sludge in your tank and fuel lines,
clogging fuel filters, carburetors and injectors," according to a
Marine Board news release.
They also point out, ethanol
absorbs water extremely well, which is a problem because boat
tanks are vented outside.
Hmm you say we are driving old
cars not boats. Good point but if you look closely you will see that
our old cars can suffer the same effects as older boat motors.
There is lots of data out that
says a 10% blend with ethanol will not hurt your car engines. This
is no doubt true for cars manufactures after the mid to late 80ties.
The problem with our old cars is
three fold, First: The rubber parts of our fuel systems was not
designed to deal with ethanol as solvent.
Secondly: Ethanol is a solvent
and will also loosen old sludge and deposits which will end up
in our fuel filter and or carburetor.
Ethanol can cause a motor to run lean on fuel, due to the fact water
will not burn and will take the place of fuel.
Vapor lock (fuel
starvation) is more common when using ethanol fuels
Among the precautions being
Run a non-alcohol fuel
stabilizer in your car's fuel system at all times. This is
recommended for engines that sit for more than a few weeks."
If you winterize your car and
don't plan on using it for a while, run the tank down to almost
empty and then add fuel stabilizer. Then, the following spring,
refill the tank with fresh gasoline. Note: You should still
add fuel stabilizer and run the engine long enough to get the
stabilizer through the carburetor.
Or, keep the tank full to
prevent any condensation from occurring. It's important to
avoid water intrusion into your fuel system. Note: You
should still add fuel stabilizer and run the engine long enough
to get the stabilizer through the carburetor.
If you do not have a
fuel filter installed, now is a good time to do so. Keep a stock
of spare fuel filters handy. Change them annually.
Rubber fuel lines older than
the mid-to-late 1980's should be inspected and may need to be
This goes for fuel pumps as
well. The fabric used in older pumps was not designed to deal
In Summary, E10 fuel is a mild
version of blended fuels and probably not a serious problem for our
old cars. But the above precautions recommended are good and will
help us from having on the road breakdowns even if we manage to
avoid using E10 fuel.
If you want more information then
you can check it out at: