CAT Hydo Advanced 10
SAE 10W hydraulic oil with 6,000-hour extended drain intervals for Cat machine hydraulics
Caterpillar
Cat HYDO Advanced 10 - Red is the same premium hydraulic oil formulation as Cat HYDO Advanced 10, supplied with a red dye so it can be visually distinguished from other fluids. It combines premium additives with specially selected, controlled higher-quality base oils, developed and qualification-tested by Caterpillar over thousands of hours in the field and laboratory, and is the preferred fill for Cat machine hydraulic systems. Specially developed additives form a long-lasting protective layer on wear surfaces in high-pressure piston, vane and gear hydraulic pumps, emulsifiers keep water held in dispersion rather than letting it separate out, and detergent dispersants improve filtration and keep components clean, while the oil offers faster air release and improved corrosion protection compared with the earlier Cat HYDO 10W. Typical values from the Cat technical data sheet include a viscosity of 42 cSt at 40°C and 6.7 cSt at 100°C (SAE viscosity grade 10W), a viscosity index of 114, a pour point of -39°C, a pumping viscosity of 15,000 mPa·s at -30°C, a pass on rust protection (ASTM D665B) and oxidation stability of more than 5,000 hours (ASTM D943).
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