If your vehicle is certified to meet California Emission
Standards (indicated
on
the underhood emission control
label), it is designed to operate
on
fuels that meet
California specifications. If such fuels are not available
in
states adopting California emissions standards, your
vehicle will operate satisfactorily on fuels meeting
federal specifications, but emission control system
performance may be affected. The malfunction indicator
lamp
on
your instrument panel may
turn
on
and/or your
vehicle may fail
a
smog-check test. If this occurs, return
to your authorized
GM
dealer for diagnosis
to
determine
the cause of failure. In the event it is determined that the
cause of the condition is the type of fuels used, repairs
may not be covered by your warranty.
Some gasolines that are not reformulated for
low
emissions contain an octane-enhancing additive called
methylcyclopentadienyl manganese tricarbonyl (MMT);
ask your service station operator whether or
not
his fuel
contains MMT. General Motors does not recommend the
use
of
such gasolines.
If
fuels containing MMT are used,
spark plug
life
may be reduced and your emission
control system performance may be affected. The
malfunction indicator lamp
on
your
instrument panel
may
turn
on.
If this occurs, return to your authorized
GM dealer for service.
To provide cleaner air, all gasolines
in
the United States
are now required
to
contain additives that
will
help
prevent deposits from forming in your engine and fuel
system, allowing your emission control system to
function properly. Therefore,
you
should not have
to
add anything to the
fuel.
In addition, gasolines
containing oxygenates, such
as
ethers and ethanol, and
reformulated gasolines may be available
in
your
area
to
help clean the air. General Motors recommends that you
use these gasolines if they comply with the
specifications described earlier.
NOTICE:
Your vehicle was not designed for fuel that
contains methanol. 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.
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