Downloaded from www.Manualslib.com manuals search engine under the proper conditions, they react with other
gases to form photochemical smog, which
is so prev
alent in Los Angeles.
In addition, carbon monoxide emissions have been
reduced by about 65 percent compared with 1960
model cars without controls. Although carbon mon
oxide does not enter into the complex photochemical
smog reaction, it
is toxic at high concentrations and
thus, has been controlled to prevent high atmospheric
concentrations.
Recent Developments
Another important advancement in air pollution
control has been the removal of lead from gasoline.
(Certain lead compounds have been used for many
years
as additives to increase octane ratings.) All
1971 General Motors cars including your Camaro
are designed
to operate on unleaded or low-lead
(zero to
0.5 grams per gallon) gasolines. However,
any gasoline with
91 Research Octane Number or
42
higher will satisfy your engine's octane requirements.
Use of unleaded or low-lead gasoline will keep your
engine running efficiently and play an important part
in reducing exhaust emissions of hydrocarbons and
particulates.
Your Role In Controlling Air Pollution
1. Use Unleaded or Low-Lead Fuels-To obtain
maximum results
In the reduction of automotive
emissions, use an unleaded gasoline.
If such gaso
line
is not available, you may use a leaded regu
lar grade gasoline.
2. Have The Air Pollution Control Systems on Your
Car Serviced Regularly -
The following pages of
this section describe the emission control systems
on Chevrolet vehicles and provide information
on their proper maintenance. By following these
recommended maintenance services you will help
assure cleaner air and provide a better running,
longer lasting engine and greater all around satis
faction, economy and performance.
Downloaded from www.Manualslib.com manuals search engine NOTE: If this cap requires a re
placement, only· a cap with these
same features should be used. Fail
ure to use the correct cap can re
sult in a serious malfunction of the
system. Correct replacement caps
may
be obtained from your Au
thorized Chevrolet Dealer.
Engine Oil
Recommendations
Use only engine oil which meets
oil quality standard GM 6041-M.
High quality oils which are in
tended for service
MS and pass car
makers' tests are
of this quality.
The oil change interval (see para
graph entitled
"Engine Oil Change
Interval") and the new vehicle
warranty are based on the use of
oils that meet these requirements.
NOTE: Non-detergent and other
low quality oils are specifically not
recommended. The use of proper
engine oils and oil change intervals are
your best assurance of contin
ued reliability and performance
from your Camaro engine.
Checking Oil Level
The engine oil should be main
tained at proper level. The best
time to check it
is before operating
the engine or as
the last step in a
fuel stop. This will allow the oil ac
cumulation in the engine to drain
back in the crankcase .
To check
the evel, remove the oil gauge rod
(dip stick), wipe it clean and rein
sert it firmly for an accurate read
ing. The oil gauge rod
is marked
"FULL" and "ADD." The oil level
should be maintained in the safety
margin, neither going above the
"FULL" line nor below the "ADD"
line. Reseat the gauge firmly after
taking the reading.
NOTE: The oil gauge rod is also
marked
"Use GM 6041-M Quality
MS Oil" as a reminder to use only
52
high quality oils as prescribed
under "Engine Oil Recommenda
tions."
Supplemental Engine Oil
Additives
The regular use of supplemental
additives
is specifically not recom
mended and will increase operat
ing costs. However, in cases of spe
cific problems which may arise
under certain conditions, additive
supplements are available that can
effectively and economically solve
these problems without causing
other difficulties.
For example, if
higher detergency
is required to re
duce varnish and sludge deposits
resulting from some unusual opera
tional difficulty, a thoroughly tested
and approved concentrate -
"En
gine Oil Supplement"-is available
at your Chevrolet dealer.
It is sug
gested that, in the event of
an oper
ational problem, you consult your
dealer for advice.
