What's the Difference Between an Automotive and Industrial Gear Oil?

[@vincentrobinette1507]

From this, I conclude, that automotive lubes would work extremely well in industrial applications, but industrial lubes may not be adequate for automotive use. Though it would be expensive, automotive gear oil might be a good choice for wind turbine transmissions.

[@otm646]

That is exactly what we determined running industrial centrifuges. We had issues with the gear life using the factory supplied industrial oil spec. After the second gearbox failure within 3 years we move to a modern automotive GL5 gear lubricant that matched the original viscosity and haven't had a single failure in almost a decade of continuous operation. Obviously the oil is changed periodically.

[@chippyjohn1]

Do Viscosity modifiers degrade with temperature fluctuation? That is to say continuous heat cycles while operating. My gearbox incorporates a silent chain and also spur gears. The silent chain requires a lower viscosity oil and spur gears higher. If the gearbox is also being used as an engine oil cooler, I was hoping to use the heated oil for the chain and cooled oil for the spur gears. Does that sound plausible? The viscosity of 75-90 is too thick at lower (~40c) temperatures for the chain and too thin at higher temperatures (~80c) for the gears according to manufacturer specifications. What do you think? The manufacturer of the silent chain also states they prefer non multi viscosity oils, Lubrication is difficult.

[@chippyjohn1]

@nunyabusiness3786 Are you referring to the difference in oil temperature for different areas?

[@albertwild4650]

could a HVI AW Hyd oil SAE 22 be used even for a short time in place of a 5w30 engine oil?

[@ImranSabuj]

sorry