Advertisement
Fuel System Requirements
The high
performance
V-8
engine
in your Corvette is designed to
operate efficiently on
premium
type
gasolines. See page
43
for
octane
requirements. Use
of
regular grade gasolines
in
higher
performance engines may
result
in potentially dangerous
engine
detonation.
FUEL
FILLER
CAP
In
some areas,
grades of gasolines may be
encountered
which result
in
severe
detonation. Should this occur consult
an
authorized
Chevro-
let
Dealer
so
that
adjustments
can be made to eliminate this
detona-
tion or reduce it
to
a safe
level.
Lift tip the
Corvette emblem
on the
rear deck to reach the fuel filler cap.
II
the cap is
lost be
sure
to
replace
it
with a vented
cap.
In all cases excessive
engine detonation,
or
knocking,
should
be
avoided in
order
to
prevent possible engine
damage.
Oil System Requirements
Lowest
Anticipated
Recommended Singhl
Recommended Multi-
Tempefohue
Viscosity Oil
ViltIcosltyOil
32
0
F.
SAE 20 or 20W
SAE 10W-30
0
0
F.
SAE lOW
SAE IOW-30
Below 0
0
F.
SAE 5W
SAE 5W-20
SAE
30
or
IOW-30
is recommended when most
o[
the driving is at high speeds and/or
at
temperatures
above
gO °F. For
continued reliability and
perform-
ance
from
your
Corvette engine,
it is recommended
that
you
use an oil
which,
according
to
the
label
on
the
can,
is (I) intended for
service MS
and (2) passes
car
makers'
tests or
meets
General
Motors Standard GM
4745-M.
Follow
the
accompanying
vicosity
and change
interval recommenda-
tions
and
check
the
oil
level
(with
engine
hot)
on
the dipstick regu-
larly. Keep
oil
level between the
FULL
and
ADD
marks, by
adding
oil when level
is
at or
below ADD
mark.
It is not
necessary to keep the
level
at
the
FULL
mark. DO
NOT OVERFILL.
Advertisement
