1984 CHEVROLET CAVALIER octane

Downloaded from www.Manualslib.com manuals search engine FUEL REQUIREMENTS
Your engine is designed to use Only unleaded gasoline. Unleaded gasoline
must be used for the emission control system to operate properly. Its use will
also reduce spark plug fouling, exhaust system corrosion and engine oil deterioration.
Using leaded gasoline can damage the emission control system and could result in loss of emission warranty coverage. The effectiveness of the catalyst in the catalytic converter decreases after use of as little as one tank of leaded
gasoline. Also, your vehicle may have the "Computer Command Control"
system, which includes an oxygen sensor. Leaded gasoline will damage the sensor, and deteriorate emission control. (For more information, see
"Computer Command Control System" in "Service and Maintenance," Section 5 of this manual).
Federal
regulations require that pumps delivering unleaded gasoline be labeled with the word UNLEADED. Only these pumps have nozzles which fit the filler neck of your vehicle's gasoline tank.
In the United States, Federal law also requires that gasoline octane ratings be
posted on the pumps. The octane rating shown is an average of Research (A)
octane number and Motor (M) octane number. In most parts of the United
States, you should use unleaded gasoline with an octane rating of at least 87. However, you may use unleaded gasoline with an octane fating as low as 85 in these high-altitude areas: Colorado, Montana, New Mexico, Utah, Wyoming,
northeastern Nevada, southern
Idaho, western South Dakota, and that part of
Texas which
is directly south of New Mexico.
Using
unleaded gasoline with an octane rating lower than stated above can
cause persistent, heavy "spark knock."
("Spark knock" is a metallic rapping
noise.) If severe, this can lead to engine damage. If you detect heavy spark
knock even when using gasoline of the recommended octane rating, or if you hear steady spark knock while holding a steady speed on level roads, have
your
dealer correct the problem. Failure to take steps to stop such knocking is misuse of the vehicle, for which Chevrolet is not responsible.
However, now and then you may notice light spark knock for a short time while
accelerating or driving up hills. This'is no cause for concern, becauseyou,,~et the greatest fuel economy benefit from the gasoline's octane rating when there
is occasional light spark knock. Using gasoline with a higher octane rating than
that which allows occasional spark knock is an unnecessary expense.
Gasoline/Ethanol Blends
Blends of unleaded gasoline and ethanol (grain alcohol) sometimes known as gasohol are available in some areas. You may use these blends in your
vehicle, if they are no more than 10 percent ethanol, without jeopardizing the New Vehicle and Emission Warranties. Be sure the gasoline-ethanol blend has
octane ratings no lower than those recommended for unleaded gasoline. Most
drivers
will not notice operating differences with blends of up to 1 0 percent
ethanol, but some may. In that case, your authorized dealer can make certain
adjustments, provided they
do not violate the Federal Emission Standards. If you are still not satisfied with ethanol-gasoline blend performance, you may
prefer
to use unleaded gasoline.
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Downloaded from www.Manualslib.com manuals search engine Other Gasolinel Alcohol Blends
Some fuel suppliers sell gasoline containing alcohol without advertising the
presence of
alcohol or giving it a special name such as gasohol. " you are not
sure whether there is alcohol in the gasoline you buy, check with the service
station operator.
DO NOT USE gasolines containing methanol (methyl or wood alcohol) that do
not
also contain cosolvents and corrosion inhibitors for methanol. Also, DO NOT USE gasolines that contain more than 5 percent methanol even if they
contain
cosolvents and corrosion inhib~ors. Fuel system damage or vehicle performance problems resuHing from the use of such fuels is not the
responsibility
of Chevrolet and may not be covered under the new vehicle
warranties.
Mhough gasolines containing 5 percent or less methanol and appropriate
cosolvents and inhibitors for methanol may be suitable for use in your vehicle,
evidence of their suitability is as yet incomplete; therefore, Chevrolet cannot, at
this time, endorse their use.
NOTICE: Take care to not spill gasoline during refueling. Guolines containing alcohol can cause paint damage, whiCh may notba covered under the New Vehicle Warranty.
OPERATION IN FOREIGN COUNTRIES
All models are specifically bum to comply with United States Federal Regulations regarding environmental quality. To comply, unleaded fuel of
sufficient octane rating must be used. These
fuels may not be available in
other countries. "you intend to take your vehicle outside the U.S. or Canada,
contact the GM Overseas Service Section at the
following address, to find out
what you must
do in order to operate your vehicles in other countries, or for
additional information and a. copy of the applicable maintenance schedule.
General Motors Corporation, Overseas Service Section, 2-128 General Motors
Building,
Detroij, Michigan 48202, (313) 556-4862.
When
writing, please include:
•
the Vehicle Identification Number and
• the countries in which yOu plan to travel.
Before taking your vehicle to a foreign country, check to see if the proper fuel
is available. Most major oil companies or domestic auto clubs should have this
information. Foreign offices of major oil
COmpanies or auto clubs may also be
of
help.
Be aware that, use of leaded gasoline or use of fuel that has a lower octane
rating than is required by your
vehicle, will cause the emission control system to lose its effectiveness and can cause ,engine knock or serious engine
damage. Ne~her GM Overseas nor Chevrolet will be responsible for damage to
your
vehicle as a result of not USing the proper fuel.
IMPORTANT FACTS YOU SHOULD KNOW ABOUT FUEL
ECONOMY AND HOW
TO IMPROVE IT
How you drive, where you drive, and when you drive all affect how many
miles/kilometers you can get from a galion/liter of fuel. You can save fuel if
you avoid
"Jackrabbit" starts, maintain as constant a throttle position as traffic
conditions
allow once you have reached cruising speed, and avoid sudden
stops which waste energy in the form of heat generated in braking.
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Downloaded from www.Manualslib.com manuals search engine Frequent short trips, excessive idling and use of the air conditioner in cool
weather (when "vent" would provide adequate comfort), all can contribute to
decreased fuel economy .
The careful attention you give your vehicle as far as maintenance and repairs
are concerned will also help fuel economy . Proper engine and air cleaner
maintenance, lubrication intervals, wheel alignment and tire inflation pressures, when closely adhered to, will pay dividends in improved fuel economy as well as longer vehicle Irte.
Fuel Selection
Use only unleaded gasoline meeting the octane ratings given under "Fuel Requirements " in this section of the manual. Unleaded gasoline must be used
for the
emission control system to operate properly . Leaded gasoline will
damage the Computer Command
Control system oxygen sensor (if so equipped) and affect emission control. Using leaded gasoline can also damage
other parts of the emission control system and could result in loss of emission warranty coverage.
STEERING COLUMN CONTROLS
ANTl-THEFT STEERING COLUMN LOCK
The anti-theft lock (;gnifion) on the right sidecf the st_ing column has live
positionS :
DRIVING TO REMOVE KEY.
POSITION ~~ DEPRESS KEY SWITCH OFF AND S . . RELEASE LEVER
~"!~·\'1-1 ~\\\-=~"
I! ACCES~RY~) , STARTING ~ OPERA. TING ... -HAZARD ENG E 'CCESSOR~sl 0 WARNING J.. KEY RELEASE , ONLY FLASHER \P' ... ~ ,LEVER '.' .'
• Accessory-You can use some electrical accessories when the engine is
not ruming . To engage this position, push in the square-head key and turn
the top of the key 10ward you.
•
Lock- Normal parking position. It locks the ignition and prevents normal use 01 the st_ing wheel and shill controls. The ignition key cannot be turned
to "Lock " and removed until the shift lever is moved to "P" (Park) on
automatic
transaxle models (shift to "Reverse" on manual transaxle
models).
II you have a manual transaxle, "Lock" prevents normal use 01
the steering wheel. The ignition key cannot be turned to "Lock" without
pressing down
the key release lever.
• Off-You can turn off the engine without IocI controls.
• Run-Normal operating position.
• Start-Cranks the engine .
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