Chevrolet 2012 Corvette Owner's Manual page 294

10-20 Vehicle Care
Changing Engine Oil and Filter
(Z06, 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.
Z06 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.
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 14 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.
(18 lb ft).