Do you wrestle over lubrication types and oil-change intervals similarly over you AUTOMOBILE or TRUCK, gaucho10?
Do what you gotta do; bring peace-of-mind to the space between your ears, but . . . in my view, the Kawasaki Owner's Manual
recommendations are both adequate for service life, and adequate to maintain factory warranty. YMMV!
Further, I find no caveat against "friction modifiers," or "energy-conserving" lubricants in the Kawasaki literature, nor do I know of any example of any wet clutch damaged by use of same.
In my view, if you follow the recommendations of your Owner's Manual
, you will enjoy the reliability, durability (service lif), and performance to the major extent of the valiant KLR's capability.
With 25 + years of production, I know of no maintenance issue traceable to use of sufficient factory-recommended lubricants.