Chevrolet 1997 Cavalier Manuel du propriétaire télécharger pdf (Page 246)

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.

you’re using

fuel

rated at

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

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

problem.

your vehicle is certified to meet California Emission

Standards (indicated on the underhood tune-up label),

it is designed to operate on fuels that meet California

specifications.

such fuels are not available

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.

this occurs, return to your

authorized Chevrolet 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

Chevrolet dealer for service.

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Chevrolet 1997 Cavalier Manuel du propriétaire Page 246

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