SAVSOL TRANSMISSION C4 FLUIDS are formulated to meet the specification requirements of Hydraulic Transmission Fluid Type C4 of Detroit Diesel,Allison  Division of GM, USA. This Oils contain Extreme Pressure additives along with  friction modifying agents for  use in encased gears and all machinery fitted with friction disc. These oils offer good friction retention properties along  with superior anti-wear, Anti Foam  properties, Oxidation stability, Rust and Corrosion protection and Seal Characteristics as per Allison C-4 requirements. It is available in SAE 10W &  SAE 30 grades.