California
Fuel
If
your vehicle is certified
to
meet California Emission
Standards (see the underhood emission control label),
it is designed
to
operate on fuels that meet California
specifications.
If
this fuel is 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 may
turn on (see
Malfunction lndicafor Lamp on page
3-47
)
and your vehicle may fail a smog-check test. If this
occurs, return
to
your authorized GM dealer for
diagnosis. If it is determined that the condition is caused
by the type of fuel used, repairs may not be covered
by your warranty.
Additives
To provide cleaner air, all gasolines in the United States
are now required
to
contain additives that
will
help
prevent engine and fuel system deposits from forming,
allowing your emission control system
to
work
properly. You should not have
to
add anything
to
your fuel. Gasolines containing oxygenates, such as
ethers and ethanol, and reformulated gasolines may be
available in your area
to
contribute
to
clean air.
General Motors recommends that you use these
gasolines, particularly
if
they comply with the
specifications described earlier.
Notice:
Your vehicle was not designed for fuel
that contains methanol. Don’t use fuel containing
methanol. It can corrode metal parts in your
fuel system and also damage the plastic and rubber
parts. That damage wouldn’t be covered under
your warranty.
Some gasolines that are not reformulated for low
emissions may contain an octane-enhancing additive
called methylcyclopentadienyl manganese tricarbonyl
(MMT); ask the attendant where you buy gasoline
whether the fuel contains MMT. General Motors does
not recommend the use of such gasolines. Fuels
containing MMT can reduce the life of spark plugs and
the performance of the emission control system may
be affected. The malfunction indicator lamp may turn on.
If
this occurs, return
to
your authorized GM dealer
for service.
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