Heat transfer oil for circuit cleaning before drain. SERIOLA CLEANER is used diluted in the fluid for circuits requiring cleaning. SERIOLA CLEANER can be used for cleaning operations or as a preventive means. For cleaning add 5% minimum of SERIOLA CLEANER in the circuit 24 to 48 hours before oil change while maintaining the fluid circulation at the normal use temperature (approximately 270°C). The circuit must be carefully emptied and the filters replaced before refilling the circuit with the new oil. When added in a proportion of 1% on a permanent basis, the circuit is kept outstandingly clean. Please consult the technical department for correct use of this fluid.