Why does the particle size of the solid lubricant make a difference?
A. Larger size particles will settle out of the oil and into the pan almost immediately. They are of no benefit. Additionally, those particles that do circulate, if too large, will be trapped by the oil filter or will plug the pick-up screen. Some filters on the market today have the ability to filter down to 5 microns. The average particle size of Mr. MOLY Engine Aide is 0.5 microns.
