Rick,
Unless the procedure has changed for the AVL in the '08, you should be checking the oil level warm, not cold. My owners manual for my '06 Electra, and I assume the engine hasn't changed, says to warm up the engine for a few minutes, then remove the dip stick, clean it and replace, threading it in all the way. If you check it cold, you will probably not see any oil on the stick and be tempted to add more, which will then proceed to blow out, when it gets hot, through any available spot (usually through the airbox) until it's back down to the proper level. Check the numerous threads on this board for checking the oil level for the AVL.