Varnish is a contaminant that doesn’t enter into the oil from outside sources, but is created in it.  The formation of varnish is a product of oil degradation primarily through chemical and thermal oxidation, and is accelerated by other factors like water, solid particles/wear metals, and heat.

Varnish has a hungry appetite for destruction, but CJC® has learned how to turn the offence against the offender, and use its own strength in a way that not only strips varnish from the oil but from the very insides of the machine as well.