Having throughly looked at the data and followed the vendor's recommended instructions, my observations are:
- oil change particle reduction - there is strong evidence that changing the oil substantially reduces engine fuel consumption, ~2.07 gm/sec MAF.
- boron CLS - appears to accelerate suspension of particle suspension and increased drag, ~2.25 gm/sec.
I can find no evidence of direct friction reduction of boron CLS without taking extra steps to reduce particle suspension. The boron CLS appears to increase particle suspension and engine friction.
I am planning to drop the engine pan and throughly clean out all accessible places. This should also substantially reduce the ~25% carry forward of old oil. Then retest to see if engine idle friction is reduced.
Bob Wilson