Saab 2001 9-3 User Manual download pdf (Page 160)

160 Starting and driving

Fuel (Gasoline Engine)

Use regular unleaded gasoline rated at 87

octane or higher. It is recommended that the

gasoline meet specifications which were

developed by the American Automobile

Manufacturers Association (AAMA) and

endorsed by the Canadian Motor Vehicle

Manufacturers Association for better vehi-

cle performance and engine protection.

Gasolines meeting the AAMA specification

could provide improved driveability and

emission control system performance com-

pared to other gasolines.

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 accel-

erating 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, con-

stant 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 Cal-

ifornia specifications. If such fuels are not

available in states adopting California emis-

sions standards, your vehicle will operate

satisfactorily on fuels meeting federal spec-

ifications, but emission control system per-

formance 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 Indica-

tor Lamp" in the Index. If this occurs, return

to your authorized Saab dealer for diagno-

sis 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 methylcy-

clopentadienyl manganese tricarbonyl

(MMT); ask your service station operator

whether or not the fuel contains MMT. Saab

does not recommend the use of such gaso-

lines. If fuels containing MMT are used,

spark plug life may be reduced and your

emission control system performance may

be affected. The Engine malfunction

(CHECK ENGINE) light on your instrument

panel may turn on. If this occurs, return to

your authorized Saab dealer for service.

In Canada, look for the

"Auto Makers’ Choice" label

on the fuel pump.

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