"EASTMAN co has zinc additive
"EASTMAN co has zinc additive for gas engines , not for diesel . product is ZDDP at 9.99 a bottle of 4 oz treats 5 qt's of oil . www.eastman.com . hope this helps ."
"EASTMAN co has zinc additive for gas engines , not for diesel . product is ZDDP at 9.99 a bottle of 4 oz treats 5 qt's of oil . www.eastman.com . hope this helps ."
