now that’s a very good point being high pressure compressor! Gonna have to get me a quart to use even though my YH seems to be very happy with just good old transmission oil (hydronic oil with extra detergent), more so than much more expensive royal purple. Flash point is pretty low at 300 degrees compared to seco’s 500 degrees.
thanks for the great info.
You should never run detergent oil in anything without a pump and filter because it has additives to keep contaminates suspended in the oil so the filter can remove them.
Anything without a pump and filter uses non-detergent oil so the contaminates settle to the bottom of the sump where they stay for the life of the unit or until physically removed.
When contaminates are suspended in the oil of anything splash lubed they become embedded in the bearings and cause excessive wear.