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There have been a lot of
old-car fires lately. I went through the
70s, the 80s and most of the
90s without ever having read much
about car fires. Suddenly, they are happening
all over the place. Heres one reason:
The ethanol in modern gasolineabout
10 percent in many statesis so corrosive,
it eats through either the fuel-pump diaphragm,
old rubber fuel lines or a pot metal part,
then leaks out on a hot engine
and
ka-bloooooie!!!
Leno suggests
you actually check out what you put
in your favorite ride.
Photo by Autoweek |
As someone who collects
old cars, and keeps them up religiously,
I am now replacing fuel-pressure regulators
every 12 to 18 months. New cars are equipped
with fuel lines that are resistant to ethanol
damage, but with older cars, the worst can
happenyoure going down the road,
and suddenly your car is on fire.
Theres more. I find that gasoline,
which used to last about a year and a half
or two years, is pretty much done after
a month or so these days. If I run a car
from the teens or 20s and fill it
up with modern fuel, then it sits for more
than two months, I often cant get
it to start.
Ethanol will absorb water from ambient air.
In a modern vehicle, with a sealed fuel
system, ethanol fuel has a harder time picking
up water from the air. But in a vintage
car, the water content of fuel can rise,
causing corrosion and inhibiting combustion.
Ethanol is
a solvent that can loosen the sludge,
varnish and dirt that accumulate in
a fuel tank. That mixture can clog fuel
lines and block carburetor jets.
Photo by Autoweek |
It gets worse. Ethanol
is a solvent that can loosen the sludge,
varnish and dirt that accumulate in a fuel
tank. That mixture can clog fuel lines and
block carburetor jets.
Blame the Renewable Fuel Standard. This
government-mandated rule requires certain
amounts of ethanol and other biofuels be
blended with gasoline and diesel fuel. But
when Congress first passed RFS as part of
the Energy Policy Act in 2005, our demand
for energy was increasing. Today, its
the opposite. Total demand for fuel has
decreased thanks to more-efficient vehicles,
more hybrids and increased environmental
awareness. The EPA is set to release the
2015 standard in June. Meanwhile, some legislators
are pushing to reform or eliminate the Renewable
Fuel Standard entirely.
I just dont see the
need for ethanol. I understand the theorythese
giant agri-business companies can process
corn, add the resulting blend to gasoline
and well be using and importing less
gasoline. But they say this diversion of
the corn supply is negatively affecting
food prices, and the ethanol-spiked gas
were forced to buy is really awful.
The big growers of corn have sold us a bill
of goods. Some people are making a lot of
money because of ethanol. But as they divert
production from food to fuel, food prices
inevitably will rise. Now, if you dont
mind paying $10 for a tortilla...
Last week, I went to start up one of my
Duesenbergs. When I pulled out of the spot
where it had been parked for about a month,
I saw a huge pool of gas. I looked at it
while it was running and saw gas just pouring
out. OK,
Ive got to buy another fuel regulator.
I pulled it out and opened it up. The fiber
diaphragm was eaten right through. Should
manufacturers make diaphragms for old cars
out of modern materials like Viton or Teflon?
Yes, they should, but not all of them do.
Consequently, your chances of a fire remain.
Heres another problem: When you have
vehicles with fuel cells in their gas tanks,
ethanol tends to eat the coating out of
the fuel cell. If you have an old motorcycle
and redo the fuel tank, the first thing
you do is seal the tank with some sealant.
Its generally a cream or a gray color,
and it looks like you painted the inside
of the tank. On a lot of my bikes now, Ill
open the gas tank and Ill go in with
a long set of tweezers. Im pulling
out sheets of this coating. Really, it comes
out in 6-inch strips.
The ethanol is just eating it up and clogging
the fuel pump because itll move around
as a sheet of material and block the opening.
With cars like my McLaren F1, if I buy a
55-gallon drum of VP racing gas, the fuel
cell will last twice as long.
Ethanol is
a solvent that can loosen the sludge,
varnish and dirt that accumulate in
a fuel tank. That mixture can clog fuel
lines and block carburetor jets.
Photo by Autoweek |
Its time for us as
automobile enthusiasts to dig in our heels
and start writing to our congressmen and
senators about the Renewable Fuel Standard,
or well be forced to use even more
ethanol. Most people assume, Oh, thatll
never happen. Theyll never do that.
Remember prohibition? In 1920, all the saloons
were closed. It took until 1933 before legal
liquor came back.
Most people dont really look at what
goes into their car. Obviously, the days
of high-octane gas like Sunoco 260 are long
gone. Those of us with older vehicles are
the ones who end up paying the price. The
car manufacturers dont care. They
dont mind if your vintage car burns
up or breaks down. They want to sell you
a new one. Its hard for enthusiasts.
We really have nowhere to go.
So write those letters, but I also suggest
you drain and clean your old cars
fuel tank, use a quality fuel-tank sealer
thats impervious to ethanol, replace
fuel filters, keep all the screens clear
and use a fuel stabilizer (added to a full
fuel tank), if your car is to be stored
for the winter season.
Oh, and keep a fire extinguisher handy.
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