Marty, long time subscriber here from alaska.... this is right up my highest attention level as it brought back a great memory on a job I worked on.. the Valdez Oil Spill, a tanker went aground and the stories about it went world wide. I was on clean up with a machine powered by a seven cylinder Deutz engine,... a very loud air cooled engine with just a perfect setup to run three centrifuges under it so it could separate oil from the sand and rock on the beach. It did work alright but it was a nasty thing to clean that crude oil from it... so when we packed up and left, we didn't bother to clean those chambers. Fast forward about two years with no more work for it and we needed some cash so decided to scrap the machine and part it out. We took those tanks out and the first one sent straight to the crusher so when we tried to take the next one... they resoundingly said clean only! We needed that cash bad so we started cleaning up the centrifuge of the nasty crude, backyard fire to remove the crude praying not to get caught with the smoke from that fire which did not burn well at all or a losing deal. That turned out a blessing though cause this is where things got interesting.... gold and oil have a similar weight on the periodic chart and so imagine our surprise when we found a significant amount of gold flake from that sand off of the beach in Valdez. I and the other guy had a lot of money we figured to never see back and so owed money yet for materials. We found in the waste and spots in the cylinders a lot of gold at thirty two dollars a ounce then as so even... it came to nearly seventy thousand dollars in gold we had no clue was in this machine... more if we had kept the one we shipped out for scrap. I did tell them what we found and so they retrieved that crude from the cylinder once found again. It paid off our debts, and put a little cash in our pockets as  well. Us guys though who catch the bug called hobby mining never wind up with much cash in the end and we could not afford to build another centrifuge like our first one.... I just know it would of worked in some of our streams here

your centrifuge will clean down to less than one micron but will not remove the colloidal carbon that makes it look black still. It will certainly be clean enough to blend with whatever and run in non common rail diesel motors. good on you mate, I've been doing this for 10 years and have used over 60,000 litres through my Cummins Signature 600.

I could watch that ram headbutt for another hour or so 😂

Who needs a guard dog when you have an attack ram 😁

The dog spinning after the tail was great. Then Marty had to say "tell 'em how it works 'eh?" Well I just lost it. Thanks for the much needed laugh!

for water contaminated tractor transmission oil I boil the water off in a 20L paint tin over a gas burner,works fine and oil ends up nice and clear again.

Anything that actually dissolved in either the oil or diesel is never coming out via centrifuge either, so that might be a big reason your cleaning diesel was so discolored.

The best method is to heat the oil up to 120c prior to centrifuging it, the high temperature thins the oil out making the centrifugal forces more effective on the finer particles.

An easy way to get water out is to freeze the liquid so the water turns to ice.

Not entirely related but: In the early 2000's my dad drove 300k miles fishing in his diesel Citreon car fuelled 90% by used vegetable oil collected from take-away restaurants and gravity filtered by the side of the road. The other 10% was either fresh cooking oil or diesel, this was mainly in the initial stages while he learned and adapted the car slightly to work better (some in line fuel heaters he custom made as 99% of the issues he had were due to viscosity/cold temperatures over night).

He did his research and got the car in question specifically due to the type of fuel pump used, I don't expect modern vehicles would take the transition as smoothly 😬

My first thought a few seconds in was "Oh that poor dog won't be that white at the end of this video." :D

If you notice, on engines that have been under cover but haven't been started for say 30 years the oil always looks like it's new. All the particulates sink and the original oil stays on top. I've seen this quite a few times over the years.

The sheep at the end was gold. I could watch that all day.

Thunder is a chip off the old block. Strong!

I used to work on seagoing vessels with separators. It needs a water ring. Vertical: from inside to outside, oil specific mass under 1. Water 1. Dirt etc larger then 1. On top you need a plate called specific mass ring. Its diameter needs to be smaller so it keeps the ,,water cylinder,, in place. You wont be able to get the colour out. Lub oil you take out the dirt and additives new engines need. So it only can be reused on older engines that dont need additives.

R.I.P Rambro, May your legacy live on

Thunder was mighty proud of himself!

I used to work with a fellow named Marty who has a Bull Terrier. What a coincidence!!!

Stay till the end.  It’s wayyy worth it.

That ending was awesome. You know you can do a basic moisture test using the crackle method. Heat up some metal on a stove top to over 100C, and place a drop or two of test oil onto it, and any significant moisture will make it crackle.