Why air release matters in hydraulics: micro-dieseling and HVLP46

Hydraulic faults aren't always about viscosity. Tiny air bubbles can compress and micro-diesel in pumps, creating brief hot spots that oxidise oil and leave varnish on spools—felt as sticky controls, sometimes worse after cold starts. Air release and anti-foam are as important as VI. The same principle applies when choosing HVLP46: stable viscosity and fast de-aeration help the system feel consistent across seasons.