Chevrolet 2011 Corvette Owner's Manual page 309

See Engine Compartment Overview
on page 10 10 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
(ZO6, ZR1, and Grand Sport)
These vehicles 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.
ZO6 Shown, ZR1 and Grand Sport
Similar
A. Engine Oil Drain Plugs
B. Seals
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.
Vehicle Care
2. Once the oil has been drained
from the engine, remove the
engine oil filter and allow the oil
to drain.
3. Re install both drain plugs and
tighten them to 25
4. Replace the oil filter and tighten
it to 30 (22 lb ft). See
Maintenance Replacement Parts
on page 11 8 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 9.9 L (10.5 quarts) of oil to
the oil tank. See Capacities and
Specifications on page 12 2.
7. Install the oil fill cap and insert
the dipstick, if removed.
10-19
(18 lb ft).