[M.D. Holloway]

Actually, it depends on what you are flushing it with. Most all flushing fluids are solvent or acid based. Pretty rough on seals as well as being a bad player for the system - you never get it all out. We invented a flushing oil that is got exceptionally high detergency and dispersentcy yet will not monkey up the system. I have spent the past 10 years amassing case studies on this stuff in all sorts of systems - engines, hydraulics, gearboxes, air compressors. Works real well at removing the junk but not in chuncks - dissolves it then disperses it.

If anyone wants the case studys, I will be glad to send you over the file.