Under normal operation (not the end of the world), I collect used engine oil and fuel from changed filters off Peterbilt trucks I service (roughly 120 trucks). I filter and blend this used oil with a setup at my house that I will detail later. However, in a SHTF scenario, the theory would be collecting the engine oil and automatic transmission fluid or even power steering fluid from abandoned vehicles, which will have run out of fuel on the road, to make a custom blend of usable emergency fuel for your diesel… The proper vehicle to run this fuel would be one with a mechanically-injected older diesel engine, pre-1997 would be safest. All older IDI Fords, 6.9 l and pre-powerstroke 7.3 l engines do well on it.

By Matt Conner