Anybody running homemade diesel fuel?
I have been running basically 20%diesel, 80% used motor oil in the farm tractor. Unfiltered, outta the truck into the tank. Haven't had any issues at all, just a bit harder to start when its cold.

Have been considering building a proper filtering/mixing/settling tank and trying to run it in my pickup truck, however i dont want to wipe out a set of injectors. I would have no problems doing it in an older diesel truck, but mine is an 08 with all the emissions garbage on it. And they are PRICEY to fix, unlike the old mechanical ones.
Curious if anybody else is doing it

I only run the old Cummins 12V's so I cant help you with the newer stuff. The 12V will take pretty much anything you throw at it. Motor oil, hydraulic, ATF, cooking oil mixes

The newer stuff, as you said is more finicky and....expensive if something goes wrong. Also mechanical vs electric, injection, fuel supply etc is a factor..

Check out this guy, Canadian who does a lot of work with Black Diesel, wealth of info.

https://www.youtube.com/watch?v=qlwc63VmIIs&t=523s

At the very least I would filter everything very very well, even in the tractor, thats just cheap insurance. Doesnt have to be fancy, just run it through a filter with a small pump or gravity drain.

Personally, I dont think I would run homemade in a newer truck unless I had a legit setup. The legit setup would be an "investment" to get a quality product, and then you would have to do the math on the return on that investment based off the savings and how many miles you would be driving to determine if its even worth it. If you were a Hotshot, and had reserve tanks in the bed and drove constantly, no brainer..but if you arent saving SIGNIFICANT money every month by running waste oil, personally I dont think its worth the hassle/risk.

For instance if you putter around town, to work and back or something and put on 1k miles/mo or 2k even...and the difference in the cost savings is a hundred bucks or so, to me not worth the risk. If you are able to save hundreds-grand or something then I would get more serious about it, but most people dont put on serious miles. You also need space for the equipment, storage of finished product and raw product waiting to be finished etc. Its a serious commitment to do it right. Every time Diesel gets around $5 or more everyone wants to get into homebrew and then they figure out its work and go back to the pump.

Older mechanical stuff no problem, just again, FILTER it well, as one engine issue will erase all savings and then some...and its cheap, no reason not to. Newer stuff, IMO do it right and go all the way or dont bother, and if you do it right it can be expensive and you only save if putting on serious miles every year.

Yeah, we are paying about 1.50 a liter up here, and we're getting a SECOND carbon tax, that should bring it up to about 1.60 which is like alot lol. And it's only going up from there, in coming years...
Figure it's worth it for me to get into it, I got lots of room for storage and I can make a set up pretty easy. Also I have a free unlimited supply of used motor oil, just not sure about running it in the newer stuff.
I know dad had a 12V cummins and could run whatever fit in the tank basically .
But the 6.7 cummins, I'm not so sure they're really all that great to begin with lol... I appreciate the link I'll check it out.