As for high content of zinc, the Joe Gibbs Break-in Oil has about 2800 ppm of ZDP which is 2.5 times the amount in CJ4 style diesel oils. The BR oil is $6.99/quart. The Hot Rod oil contains roughly 1500 ppm along with anti-friction and anti-rust additives for street/strip use in engines that tend to sit for days without being run. The HR oil is $9.99/quart. They also have all out racing oil for a number of different sanctions. Remember, you get what you pay for and oil is no place to save a buck. Nick Alfano Performance 4849-76 st. Kenosha, WI. 53142 262-308-1302 262-942-8271 after 6pm central and weekends Message: 10 Date: Thu, 13 Mar 2008 10:13:08 -0500 From: Frank Swygert <farna@xxxxxxx> Subject: Re: [Amc-list] ZDDP Mobil Oil List To: amc-list@xxxxxxxxxxxx Message-ID: <47D94484.3030703@xxxxxxx> Content-Type: text/plain; charset=ISO-8859-1; format=flowed "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 _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list