Downloaded from www.Manualslib.com manuals search engine Supplemental Engine Oil
Additives
The regular use of supplemental
additives
is specifically not recom
mended and will increase operat
ing costs. However, supplemental
additives are available that can
ef
fectively and economically solve
certain specific problems without
causing other difficulties.
For ex
ample, if higher detergency is re
quired to reduce varnish and sludge
deposits resulting from some un
usual operational difficulty, a thor
oughly tested and approved addi
tive-"G.M. Super Engine Oil Sup
plement" -is available at your Chev
rolet dealer.
In the event of an
operational problem, consult your
dealer for advice before using sup
plemental additives.
Air Cleaner
When replacement of Air Cleaner
filter element
is necessary, an AC
ACron air filter element
is recom
mended.
Drive Belts
Every 12 months or 15,000
miles-inspect drive belts for wear,
fraying, cracking, and tension. Belts
which are in
pOQr condition should
be replaced immediately.
Check tension by applying mod
erate thumb pressUre midway be
tween pulleys.
If the center-to
center distance between pulleys
is
5-4
13 to 16 inches, the belt should de
flect
'h inch. If the center-to-center
distance
is 7 to 10 inches, the belt
should deflect
~ inch. Loose belts
should be retensioned to give the
correct deflection.
1----7'· TO 10" --~ 1/4" DEFLECTION
I· 13" TO 16" I ~"DEFLECTI~
