Service And Maintenance; Fuel Requirements - Chevrolet 1971 Camaro Owner's Manual

SERVICE AND MAINTENANCE
The time or mileage intervals on
the following pages are intended as
a guide for establishing regular
maintenance and lubrication
periods for your car. Sustained
Fuel
Requirements
Your Camaro is designed to
operate efficiently on fuel of ap-
proximately 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-
heavy duty or high speed operations
or operation under adverse condi-
tions may necessitate more frequent
servicing. To determine specific
recommendations for conditions
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 ex-
cessive knocking may result in en-
gine damage and constitutes mis-
use of the engine for which Chev-
rolet Division is not responsible
under the terms of the New Vehicle
Warranty.
NOTE: Read page 42 regarding
the importance of using unleaded
or low lead gasolines.
51
under which you use your car, con-
sult your Authorized Chevrolet
Dealer.
Gas Cap-The fuel tank filler cap
has a new two-step removal and
installation procedure plus a pres-
sure-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 procedure.