Chevrolet Corvette Owner's Manual page 220

See Track Events and Competitive
Driving 0 155 for additional
information on engine oil.
Caution
Do not add too much oil. Oil
levels above or below the
acceptable operating range
shown on the dipstick are harmful
to the engine. If you find that you
have an oil level above the
operating range, i.e., the engine
has so much oil that the oil level
gets above the cross-hatched
area that shows the proper
operating range, the engine could
be damaged. You should drain
out the excess oil or limit driving
of the vehicle and seek a service
professional to remove the
excess amount of oil.
See Engine Compartment Overview
0 214 for the location of the external
engine oil tank and fill cap.
Add enough oil to put the level
somewhere in the proper operating
range. Push the dipstick all the way
back into the oil tank when through.
Changing Engine Oil and Filter
The vehicle may have a
racetrack-ready dry sump engine
lubrication system. This
high-performance system operates
differently than a standard engine
lubrication system and requires a
special procedure when changing
the engine oil and filter. Follow this
procedure closely when changing
the engine oil and filter.
1. Engine Oil Drain Plugs
Vehicle Care
2. Seals
Steps to follow:
1. Remove the two engine oil
drain plugs from the bottom of
the engine oil pan. One drain
plug drains the external oil tank
via the oil transfer supply line.
The other drain plug drains
residual oil from the crankcase
sump. Allow the oil to drain.
2. Once the oil has been drained
from the engine, remove the
engine oil filter and allow the oil
to drain.
3. Reinstall both drain plugs and
tighten them to 25
(18 lb ft).
4. Replace the oil filter and
tighten it to 30 (22 lb ft).
See Maintenance Replacement
Parts 0 298 for the correct filter.
5. Oil is filled through the opening
in the top of the external
engine oil tank. Remove the oil
fill cap.
6. Add oil to the oil tank. See
Capacities and Specifications
0 301.
219