The currently available Shell Rotella T SB is an SJ oil (last with good zinc?) fully synthetic 0W-40. Ken Quoting theamcguy@xxxxxxxxx: > > zmaxx is a chlorine based lubricant. Chlorine is an excellent extreme > pressure lubricant but has some other deficiencies. The stuff you want is > zddp http://www.zddplus.com/ I know the guy who developed it and he spent a > lot of time research and development. What this stuff does is bring the > modern day SM oil to pre 1988 SF oil which is what the flat tappet cams need > for protection. At the same time you get the modern detergent pkg in the SM > oils. > > > Bill Strobel > Fayetteville, NC > 1967 Rebel SST > 1969 SC/Rambler > 1972 Hornet Sportabout > 1976 Matador Brougham > AMCRC. AMCWC, AMO, NAMDRA > > _______________________________________________ > AMC-list mailing list > AMC-list@xxxxxxxxxxxx > http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com > _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com