The oxidation level of anti-wear hydraulic oil。In the use of anti-wear hydraulic oil, because of the change of ambient temperature, the effect of oxygen in the air and sunlight, it may be slowly oxidized, so that its viscosity and other characteristics change。The level of air oxidation, usually fromGansu hydraulic oilThe color, smell distinguish。If the hydraulic oil is dark brown in color and has a rancid smell, it indicates that it has been oxidized。The darker the brown, the more rancid the smell, the stronger the level of oxidation。At this time, you should replace the new oil。