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I'm not questioning the lubricity of umo as fuel, just saying the detergents fight the fine particles separating. In fact where I used to work we made fire resis tant hydraulic fluid and one of the components was indeed micronized sulfur as a lubricant. It's also the reason that ultra low...

The emulsifiers and detergents were added for the very reason they give up problems with the solids NOT separating. If you are old enough to remember nondetergent oils you will remember poking a stick in the oil drain to get the oil to flow when draining. High Detergent oils hold the carbon...

I've been considering "washing" umo with water and soda ash for a while. The soda ash would neutralize any acid and I'm thinking solubles would remain in the water after settling. It would be simple to decant the water later. Heating and agitation would probably help speed up the exchange. I...