I had been monitoring UOA's of fully synthetic ; semi synthetic and mineral oils in America ......
and read-up on Blotter Spot tests method online .....
and hence pushing for longer OCI's which may be deemed as 'uncharted waters' .....
as a contribution to lowyat forum.
Edit:As of today, touching 14900 km ...... and going.
This post has been edited by zeng: Mar 26 2017, 07:45 PM
Blotter Spot Test Oil Analysis:VOA Helix HX7 5W30, 17,834 km blotter M1 NewLife 0W40(Tesco)