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
33
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.
Downloaded from www.Manualslib.com manuals search engine PERIODIC MAINTENANCE AND LUBRICATION
The time or mileage intervals on the following pages
are intended as a general guide for establishing regular
maintenance and lubrication periods for your Corvair.
Sustained heavy duty or high speed operations or oper
ation under adverse conditions may necessitate more
frequent servicing. For specific recommendations for con
ditions under which you use your vehicle, consult your
authorized Chevrolet Dealer.
37
ENGINE OIL CHANGE*
See "Engine Lubrication" in previous pages.
OIL FILTER*
Change the filter element every 6000 miles or every
six months, whichever occurs first.
CRANKCASE VENTILA T10N*
Valve Type (Air Conditioned Models)-Test at every
oil change, replace as required.
Fixed Orifice Type-Check at every oil change,
clean every
12,000 miles.
STEERING GEAR
Every 36,000 miles-Remove filler plug and check
lubricant level. If necessary add water resistant EP
lubricant to bring to level of filler plug hole.
* More often under prolonged dusty driving conditions.
