Hydraulic Oil 32 vs 46: Purchasing & Changeover Guide
Hydraulic oil 32 vs 46 is a choice between viscosity grades: ISO VG 46 has higher kinematic viscosity at the 40°C reference temperature. That does not make it a better lubricant for every machine. Procurement needs the pump or equipment manufacturer's permitted fluid specification and viscosity range at startup and in service before accepting either grade.
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