oil viscosity CHEVROLET CORVAIR 1965 2.G Owners Manual
[x] Cancel search | Manufacturer: CHEVROLET, Model Year: 1965, Model line: CORVAIR, Model: CHEVROLET CORVAIR 1965 2.GPages: 56, PDF Size: 22.29 MB
Page 35 of 56
Downloaded from www.Manualslib.com manuals search engine MAINTENANCE AND LUBRICATION
GASOLINE AND ENGINE OIL
In the selection of gasoline and engine oil to be
used, it is best to consider the reputation of the refiner
or marketer. This is the best means of obtaining gasoline
and oil of high quality.
Gasoline
The Corvair Turbo-Air 95 horsepower engine is
designed to operate efficiently on regular grade gas
olines commonly sold in the United States and Canada.
The
higher horsepower performance engines are
designed to operate efficiently on premium grade gas
olines commonly sold in the United States and Canada.
Use of regular grade gasolines in these higher per
formance engines may result ,in excessive knocking.
Since the octane quality of all regular grade or of
all premium grade gasolines is not the same and factors
such as altitude, terrain and air temperqture affect oper
ating efficiency, excessive' knocking may result, even
though you are using the grade of gasoline recom
mended for your engine. If excessive knocking occurs in
your engine, it may be necessary to use the next higher
grade of gasoline, and if knocking continues, consult
your Authorized Chevrolet Dealer.
If you plan to operate your Corvair outside the
continental limits of the United States or Canada, there
is a possibility that the best fuels available are so low
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in octane quality that excessive knocking and serious
engine trouble may result from their use. To minimize this
possibility, write to Chevrolet Motor Division, General
Motors Corporation, Service Operations Department,
Detroit, Michigan 48202 giving: Your engine serial num
ber (see page 44), the compression ratio of your engine
(see page 44) and the country or countries in which you
plan to travel. You will be furnished details of adjust
ments or modifications which should be made to your
engine by your Chevrolet dealer prior to your departure.
After arriving in a foreign country, contact the nearest
authorized General Motors dealer for brand names of
the best fuels available and advice as to where they
may be purchased.
In all cases excessive knocking should be avoided
as much as possible in order to prevent possible engine
damage. Operation of your car under conditions of con
tinuous or excessive knocking constitutes misuse of the
engine for which the Chevrolet Division is not responsible
under the terms of the manufacturer's New Vehicle
Warranty.
ENGINE LUBRICATION
The use of a high quality oil of the correct viscosity
is your best assurance of continued reliability and per
formancefrom your engine. It is recommended that
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Downloaded from www.Manualslib.com manuals search engine you use an oil which, according to the label on the can
is (1) intended for service MS and (2) passes car makers'
tests or meets General Motors Standard GM 4745-M .
Oils conforming to these types contain detergent addi
tives. Your serviceman will be pleased to assist you in
selecting the proper oil for your car.
Check the oil level (with the engine hot) on the dip
stick frequently. Keep oil level between the FULL and
ADD marks, by adding oil when level is at or below
ADD mark. Do not overfill. Poor performance and pos
sible engine damage may result if the crankcase is
overfilled. Drain and refill the crankcase very 60 days
or 6000 miles, whichever occurs first.
For vehicles
in heavy duty operation involving con
tinuous stop-
start or prolonged idling, engine oil should
be changed after 2500-3000 miles of operation.
NOTE: When checking or adding oil, be care
ful to avoid spilling or dropping oil onto the
engine shrouding.
LOWEST RECOMMENDED SAE VISCOSITY OIL ANTICIPATED TEMP. SINGLE VISCOSITY MULTI-VISCOSITY
32° F. SAE-30 SAE-l0W-30
10° F. SAE-l0W SAE-l0W-30
Below -10° F. SAE-5W SAE-5W-20
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COOLING SYSTEM CARE
The engine fan belt should be checked for tightness
at regular intervals. When a new belt is needed use only
the approved premium belt available from your Chev
rolet dealer. If any other belt is installed, replace with
recommended belt when possible .
Watch the TEMP-PRESS and GEN-FAN indicators on
the instrument panel for signs of overheating.
Air inlet louvers, located in the panel below the rear
window on Corvair models, or in the Corvair Greenbrier
upper rear quarter panels, supply air for engine combus
tion
and cooling and for the Direct Air Heater. Make
sure the louvers are never sealed or blocked.
BATTERY CARE
Check fluid level frequently. Keep filled with distilled
water to level of split ring in vent tube.