At 1000 miles I had my Dealer change to Royal Purple. Firstly because the Chrysler dealership did it-no future hassle as to incorrect oil, and second, RP is an excellent synthetic oil. Here's their link:
http://www.royalpurple.com/rettech/retwhyrp.shtml; I've personally seen the old ball brg. test using several oils and RP had the least wear, FWIW.
'03 GT Cruiser,White w/ Auto Stick, K&N w/ Mod. Air Box,Alpine XM radio
'02 Corvette (555netHP)
Member of 11sec. club &
NRA Patron Member