I'll share with you my trick I did this on a BMW first step I got the supplies. I got a can of B12 chem tool a heavyweight oil like the heaviest weight I could find one quart and I got a bucket of diesel. The first thing I did was add about a quart of diesel into the existing oil. I ran the engine until it was warm I did not rev or drive. Then I performed a normal oil change, changed the filter replaced the drain plug and then filled the entire crankcase as much as I could with diesel I put the cap back on it. And let it sit for about 2 days. Next I drained the diesel which came out black. Then I added the one quart of heavyweight oil and the diesel until the fill line on the dipstick. I ran the engine for about 20 minutes. And then I added half a can of B12 chem tool in the crank case after another minute or two I shut off the engine. Lastly I took the spark plugs out and used a syringe to squirt a bit of B12 chem tool into the cylinders. I let the B12 evaporate until it was just a thin wet layer. After another day I replaced the oil after rinsing it with some cheap stuff changed the filter the car was noticeably quieter at idle and after driving it to the post office and back which is about 7 miles I rev the engine there was no more smoke. It's been about 6 months since I've done that and still isn't burning a drop of oil that I can detect. Best of luck to you and thank you for documenting what you do this can probably help a lot of people.

How long did the oil stay brown?

But how does it run.

Completely off topic here…but, are you done with the aquarium hobby and posting videos on the topic? Your videos before were great, so informative. Cheers none the less!

Did the oil clean up after running it longer i followed your process on my 06 5.9 right now it’s a hair darker than yours I’m on my second amsoil filter figured the first one got plugged up

Liqui Moly Engine flush...You'll see a difference.