Join Date: Nov 2009
Thanked 655 Times in 578 Posts
I worked at a logging camp in the early 70s they bought a fancy machine for adding the motor oil back into the fuel tank. They did not use any oil from the filters, just from the oil pan, these were 12 cylinder Detroit's of Cummins, it pumped the oil threw a 750D luberfiner filter for an hour to filter it and get rid of the acid build up. Then it transfered fuel to the mix and ran that mix threw a different 750D filter to scrub it, that was done for anouther hour. Then it was put back into the fuel tank. The mix was continually heated, and it was done on units that just came off the road.
There would be 25 gallons of oil from the Cummins, and 16 for the Detroit's, the fuel tanks held about 500 gallons. They stopped this before a month was done because of seized injectors these were top stop Cummins and the old N65 in the Detroit's with a popping preasure of less than 450 lbs.
Every single unit that had the oil put into the fuel needed at least one full set of injectors. They ended up having to drain and flush the fuel tanks on every unit and all that fuel 20 trucks x 500 gallons that is a lot of fuel they had to pay to be sent back to the refinery to be disposed of. That is a lot of trucks shut down, and lost production.
I made a fortune changing injectors.
You are draining the oil that is full of acids, fine metals, and carbon and then someone is going to tell you it is good to run in the fuel system. Phone any injection shop and ask them if they will warranty their products if you do this, oil filters are filtering at best 30 microns. How many filters would be needed to clean this. ask and injection dealer to what filtration you need to go to?
It is like adding lapping compound to you oil, because it will polish the crankshaft.