6-4
In Canada, look for
the “Auto Makers’
Choice” label on the
fuel pump.
Canada Only
Be sure the posted octane for premium is at least 91
(at least 87 for regular). If the octane is less than 87,
you may get a heavy knocking noise when you drive.
If it’s bad enough, it can damage your engine.
If you’re using fuel rated at the recommended octane
or higher and you hear heavy knocking, your engine
needs service. But don’t 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.
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. See “Malfunction
Indicator Lamp” in the Index. If this occurs, return
to your authorized Pontiac 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 may contain an octane
-
enhancing additive
called methylcyclopentadienyl manganese tricarbonyl
(MMT); ask your service station operator whether or
not the 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 Pontiac dealer for service.
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