OIL OIL LAB TESTING What does it all mean??

The scar testing was done and posted by 'rat540' on speedtalk's engine forum. He does not give his real name.

It is interesting and useful, but at the same time represents only one of several considerations in choosing a motor oil. His test (which he reposts at every opportunity) unfortunately too often takes people off track from other performance characteristics of the oil that they should be looking at. In fact possibly more important ones (depending on the situation.)

One of the best papers to start with is Richard Widman's "Selecting the right oil for your Corvair". He covers base stocks, SAE weights vs viscosity, pour points, shear and much more.
Download pdf in English from
http://www.widman.biz/Corvair/English/Links/Links.html
or his business pages http://www.widman.biz/English/Selection/oil.html