Chrysler Crossfire 2007 Owner's Manual page 226

226 MAINTAINING YOUR VEHICLE
The best time to check the engine oil level is about 5
minutes after a fully warmed engine is shut off, or before
starting the engine after it has sat overnight.
Checking the oil while the vehicle is on level ground will
improve the accuracy of the oil level readings. Maintain
the oil level between the MIN and MAX markings on the
dipstick. Adding 1 quart of oil when the reading is at the
MIN mark will result in a MAX reading on this engine.
I n f o r ma t i o n P r o v i d e d b y :