Servoprime XL oils are specially designed turbine oils meeting Mitsubishi Heavy Industries (MHI) specification MS04-MA-CL002 (Rev. 2) & MS 04-MA-CL005 (Rev 2) for application in heavy duty single to multi-shaft steam and gas turbines with bearing ambient temperature of above 250 deg C. The oil has excellent thermal/oxidation properties with minimal sludge generation tendency.