Chevrolet 2001 Express Van Bedienungshandbuch PDF herunterladen (Seite 273)

6-4

In Canada, look for the

“Auto Makers’ Choice”

label on the fuel pump.

Canada Only

Be sure the posted octane is at least 87. 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 87 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 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 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 GM dealer

for service.

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