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 SMoils.
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