Due to its sufficiently high viscosity matching the gear oil, Klüber Summit Varnasolv HV can be added to the oil to clean gears during operation. Klüber Summit Varnasolv HV is a fluid cleaning concentrate designed to dissolve sticky residues, varnish and carbon build-up during operation and keep them suspended in the oil. At the end of the cleaning process, the used oil is drained to flush out the unwanted residues and fresh, clean oil is applied.

Klüber Summit Varnasolv HV was especially developed for cleaning enclosed gears in wind turbines. Further possible applications are for example filter housings and tubes containing carbon build-up or aged oil residues where higher viscosity is essential for operation. Klüber Summit Varnasolv HV can be used in combination with mineral, synthetic hydrocarbon and ester oils.