2007 F150, 4.2 V6, 97K miles
Almost 6K miles on a Castrol 5W20 GTX SynBend OCI
http://www.youtube.com/watch?v=UtKsyhjXgyw&feature=player_embedded
Almost 6K miles on a Castrol 5W20 GTX SynBend OCI
http://www.youtube.com/watch?v=UtKsyhjXgyw&feature=player_embedded