"Motorhead" makes a special high zinc and phosporous oil. 0.250% zinc, doesn't give phosphorous amount in the ad. Check www.motorheadoil.com. They also make a 0.125% zinc oil, and a "ZBoost" (zinc boost) additive for $9.95 that treats 5-6 quarts, bringing zinc levels back up to API-SL levels (0.110% zinc). I haven't tried it and get nothing from Motorhead, except for a $40 paid ad in AMC. ($40 gets vendors a 1/3 page ad for a year!! -- Frank Swygert Publisher, "American Motors Cars" Magazine (AMC) For all AMC enthusiasts http://farna.home.att.net/AMC.html (free download available!) _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list