Waste Motor Oil Refining

[rbodell]

pretty sure it's going to be basic.  They have TBN numbers assigned which is the True Base Number - indicative of their base ph.  This is supposed to counteract the acidic effects of combustion blowby.

RC

One thing I wondered is that do synthetic oils that hold up better in an engine burn as well as regular oil when diluted and sent through a diesel engine?  Anyone tried firing a Listeroid or other compression ignition engine on synthetic?

Although none of my batches have been 100% synthetic, some have been as much as 25% synthetic, 25% regular waste oiland 50% diesel. Couldn't tell any difference in sound, temperature or power.