How long to run centrifuge?

[camp9]

I'm wondering how long some of you run your centrifuge to clean up WMO? or when you know it's clean enough to run in your trucks? I bought a 65gph unit off of fleebay and have it mounted on a 55gal barrel. I put it out on the south side of my machine shed, let it warm it which is easy this summer, and usually start it by mid day and let it run until dark. I also pull the oil from a 300 gallon settling tank and pre filter to 40 microns before running it. Thanks,

Camp

 

[gimpyrobb]

When the bowl stops collecting crap you have to scrape off, its clean.

 

[PsycoBob]

The hotter the oil, the more junk you'll get out in a given time. Going from 130-200F tripled the load inside my centrifuge.