SERVICE
AND
MAINTENANCE
The time or mileage ,intervals
on
the
following pages are in-
tended as a guide for establishing
regular maintenance and lubrica-
tion periods for your car.
Sus-
Fuel
Requ i rements
Your
Monte Carlo
is
designed
to operate efficiently on fuel of
approximately
91
Research Octane
Number
or
higher, commonly sold
in the United
States and Canada.
Use of a fuel which
is
too low in
anti-knock quality will result in
"spark knock"
and/or
"after-run".
Since
the anti-knock quality of all
gasoline
is
not the same and factors
such as altitude, terrain, and air
temperature affect operating
effi-
tained heavy duty or high speed
operations or operation under
adverse conditions may necessi-
tate more frequent servicing.
To
ciency, knocking and/
or
after-run
may result even though you are
using the fuel recommended.
If
these conditions persist consult
your authorized Chevrolet Dealer.
In
any case, continuous or
excessive knocking may result in
engine damage and constitutes
misuse of the engine for which
Chevrolet Division
is
not respon-
sible under the terms of the New
Vehicle Warranty.
NOTE:
Read page 46 regarding
the importance of using unleaded
or low lead gasolines.
56
determine specific recommenda-
tions for conditions under whieh
you use your car, consult your
Authorized Chevrolet Dealer.
Gas Cap-The fuel tank filler cap
has a new two-step removal and
installation
procedure
plus
a
pressure-vacuum
safety
relief
valve.
It
is
equipped with a double
set of locking tangs.
To
remove:
• Rotate cap one-half turn coun-
terclockwise to clear the first set
of tangs from the slots inside
the filler neck. This will allow
any residual pressure to escape.
• Pull the cap outward and rotate
one-quarter turn counterclock-
wise to clear second set of tangs
and remove the cap.
•
To
install, reverse this pro-
cedure.
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