Agreed tsk but my point is that even if manufacturer are adding something against zinc & sulfer even then adding boron to that makes so much difference....there is no biodegradable lubricant right now available which can perform consistantly.......so I think in future most manufacturer has to adopt this method in any manner till new such wonderful friction reducing technology is discoverd.....also adding nanosized boron is most beneficial but is out of reach of we people... |