Crusader Marine L510001-04 Owners Operation and Maintenance manual covers Crusader/PCM 5.0L, 5.7L, 6.0L, and 8.1L MPI engine's for 2004. This manual provides all the information needed to maintain, service and trouble shoot minor problems that may develop during the season. It also provides information for service and warranty policies along with general specifications ans service requirements. Crusader Engines, which is now a division of The Pleasurecraft Engine Group with 35 years experience themselves, has focused one hundred percent on providing the best premium gasoline inboard engine's available today. For over 55 years, Crusader Engines have produced quality inboard engines with the newest cutting edge technology.