Shell Tonna S3 M 68 is a multi-grade hydraulic oil specially formulated with high-quality base oils and an advanced additive system. It is designed for use in hydraulic systems operating under moderate to severe service conditions, such as those found in mobile and stationary equipment. It has excellent thermal and oxidation stability and can provide superior protection against wear and corrosion, even in systems with high water contamination. It meets or exceeds the performance requirements of major hydraulic equipment manufacturers.