Hello, my first post here. After reading several articles I think this would be my best of finding a solution. Or maybe someone has had the same problem. Are company has switched over the new glorious zgtf (zero gram trans fat) oil. Well this new oil plugs up are precool belt are blast freezer belt and all of the evaporator. Every thing we have tried has not worked to clean this gunk out of them and now we are losing are ability to freeze like we should. We have a 3800 ton system here. York and a Aero freezer. Anyone had this problem? If so what would you recommend to clean the evaps. belt with.