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Don't know how many times the oil went through. Filtered oil is dumped in the top of a 55 drum, and siphoned out the bottom to be filtered again. Pump runs at .9 gpm, so one cycle thru should take just over a hour. Usually let it run overnight, about 8 hours. Thanks for some tech info...

The oil I get comes from a variety of sources, and is all mixed together for filtering. The water content/antifreeze content is not surprising, I've had to drain both from the bottom of some the oil. Fuel in the oil is a good thing for me! I had noticed the oil seemed thinner after...

Haven't forgot you guys, went to send it and they yelled about my packaging, it's still in the truck. I'll get it repacked and sent.

I finally got a couple batches run. PM you addy Bjorn, and I'll send some to ya.(don't worry about the shipping). Okay, some may see this little invention of mine as a good idea. If I had to do it all over again, I would have built the motor driven centrifuge over the oil driven one. This...

I'll let you know when I get another batch run. Be about a week, I'll set aside some samples for ya. I'm not sure what will get filtered out. I was just worried about particulate size, as in getting 5-10 micron filtration. Hate to see my hillbilly invention shoot down, but I'll play. Dennis

The pump is a lubriquip model 111, driven by a 3/4hp motor. (the 1/2hp motor died of old age) Belt driven to get the right ratio and GPM out of the pump. Other's are using power steering pumps. Managed to break the centrifuge. Darn pressure relief on the pump was set too high, had a clog on...

Well the oil starts out black, and gets to a brown when done. Not as clear as new motor oil. The thermostat is a standard part, called a lower thermostat, and is for a 220 volt water heater. I used it to fire a a relay,but I believe it is designed to handle the full load of the heating...

As for the cost of operating, I haven't run it enough to determine. Should be pretty cheap, I am using the low setting of the heater most of the time, and the pump motor is only 1/2 hp. Will try to get some pics of the sludge and oil after use. Still working the bugs out, right now I am re...

This system is no more, went to a motor driven one. https://www.steelsoldiers.com/threads/stretchs-used-oil-centrifuge.10416/ My attempt at a better system of oil filtering. Thanks to Houdel for links to the Diescraft centrifuge. The whole reason for this adventure is to use the oil as fuel...