Amsoil high zinc oil: http://www.amsoil.lube-direct.com/20...nc-oil-amsoil/ AMSOILs High Zinc Recommendations: Z-ROD™ 10W-30 Synthetic Motor Oil (ZRT) Phosphorus Level (ppm) 1320 Zinc Level (ppm) 1440 Z-ROD™ 20W-50 Synthetic Motor Oil (ZRF) Phosphorus Level (ppm) 1320 Zinc Level (ppm) 1440 Premium Protection 10W-40 Synthetic Motor Oil (AMO) Phosphorus Level (ppm) 1265 Zinc Level (ppm) 1378 Premium Protection 20W-50 Synthetic Motor Oil (ARO) Phosphorus Level (ppm) 1266 Zinc Level (ppm) 1379 Series 3000 5W-30Synthetic Heavy Duty Diesel Oil (HDD) Phosphorus Level (ppm) 1266 Zinc Level (ppm) 1379 15W-40 Synthetic HeavyDuty Diesel and Marine Motor Oil (AME) Phosphorus Level (ppm) 1267 Zinc Level (ppm) 1377 Dominator® 5W-20 Synthetic Racing Oil (RD20) Phosphorus Level (ppm) 1424 Zinc Level (ppm) 1575 Dominator® 10W-30Synthetic Racing Oil (RD30) Phosphorus Level (ppm) 1424 Zinc Level (ppm) 1575 Dominator® 15W-50Synthetic Racing Oil (RD50) Phosphorus Level (ppm) 1424 Zinc Level (ppm) 1575 SAE 60 Super Heavy Weight Synthetic Racing Oil (AHR) Phosphorus Level (ppm) 1265 Zinc Level (ppm) 1375 I use the 10-40/20-50 Premium Protection and the SAE-60 in my vintage engines ;o) MHD Sent from my BlackBerry® by Boost Mobile _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com