Buick RIVIERA 1993 Owner's Manual download pdf (Page 220)

Gasolines for Cleaner Air

Your use of gasoline with detergent additives will help

prevent deposits from forming in your engine and fuel

system. That helps keep your engine in tune and your

emission control system working properly. It’s good €or

your vehicle, and you’ll be doing your part for cleaner

air.

Many gasolines are now blended with materials called

oxygenates. General Motors recommends that you use

gasolines with these blending materials, such as MTBE

and ethanol. By doing

so,

you can help clean the air,

especially in those parts

the country that have high

carbon monoxide levels.

addition, some gasoline suppliers are now producing

reformulated gasolines. These gasolines are specially

designed to reduce vehicle emissions. General Motors

recommends that you use reformulated gasoline. By

doing

so,

you can help clean the air, especially in those

parts of the country that have high Ozone levels.

You should ask your service station operators if their

gasolines contain detergents and oxygenates, and if they

have been reformulated

reduce vehicle emissions.

Fuels in Foreign Countries

If you plan on driving in another country outside the

U.S.

or Canada, unleaded fuel may be hard to find.

not use leaded gasoline. If you use even one tankful,

your emission controls won’t work well or at all. With

continuous use, spark plugs can get fouled, the exhaust

system can corrode, and your engine oil can deteriorate

quickly. Your vehicle’s oxygen sensor will be damaged.

All of that means costly repairs that wouldn’t be covered

by your warranty.

To check on fuel availability, ask an auto club, or

contact a major oil company that does business in the

country where you’ll be driving.

You can also write us at the following address for

advice. Just tell us where you’re going and give your

Vehicle Identification Number

(VIN).

General Motors

Canada Ltd.

International Export Sales

P.O.

Box

828

Oshawa, Ontario L1H

7N1,

Canada

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Buick RIVIERA 1993 Owner's Manual Page 220

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