worry
if
you hear a little pinging noise
when you’re accelerating or driving up a
hill. That’s normal and you don’t have to
buy a higher octane fuel to get rid of
pinging. It’s the heavy, constant knock
that means you have a problem.
What about gasoline
with
blending
materials that contain oxygen
(oxygenates), such as MTBE or alcohol?
MTBE
is
“methyl tertiary-butyl ether.”
Fuel that is no more than
15%
MTBE is
fine for your vehicle.
Ethanol
is
ethyl or grain alcohol.
Properly-blended fuel that
is
no more
than
10%
ethanol is fine for your vehicle.
Methanol is methyl or wood alcohol.
NOTICE:
Fuel that
is
more than
S%
methanol
is
bad for your vehicle. Don’t use it.
It can corrode metal parts
in
your fuel
system and also damage plastic and
rubber parts. That damage wouldn’t
be covered under your warranty. And
even
at
5%
or less, there must be
“cosolvents” and corrosion prevent-
ers
in
this fuel to help avoid these
problems.
Gasolines
for
Cleaner Air
Your use of gasoline
with
deposit control
additives
will
help prevent deposits from
forming
in
your engine and fuel system.
That helps keep your engine
in
tune and
your emission control system working
properly. It’s good for your vehicle, and
you’ll be doing your part
for
cleaner air.
Many gasolines are now blended with
oxygenates. General Motors recommends
that you use gasolines
with
these blending
materials, such as MTBE and ethanol. By
doing
so,
you can help clean the air,
especially
in
those parts of the country
that have high carbon monoxide levels.
In
addition, some gasoline suppliers are
now producing reformulated gasolines.
These gasolines are specially designed to
reduce vehicle emissions. General Motors
recommends that you use reformulated
gasoline.
By
doing
so,
you can help clean
the air, especially
in
those parts of the
country that have high ozone levels.
You should ask your service station
operators
if
their gasolines contain deposit
control additives and oxygenates, and
if
they have been reformulated to reduce
vehicle emissions.
Fuels
in
Foreign Countries
If
you plan on driving
in
another country
outside the
U.S.
or Canada, unleaded fuel
may be hard to find.
Do
not use leaded
gasoline. If you use even one tankful,
your emission controls won’t work well
or at all. With continuous use, spark plugs
can get fouled, the exhaust system can
corrode, and your engine oil can
deteriorate quickly. Your vehicle’s oxygen
sensor
will
be damaged.
All
of that means
costly repairs that wouldn’t be covered by
your warranty.
To check on fuel availability, ask an auto
club, or contact a major oil company
that
does business
in
the country where you’ll
be driving.
You can also write us
at
the following
address for advice. Just tell us where
you’re going and give your Vehicle
Identification Number
(VIN).
General Motors Overseas Distribution
North American Export Sales (NAES)
1908
Colonel Sam Drive
Oshawa, Ontario
LlH
8P7
Corporation
157..
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