which leads to the obvious question. if they could make 100% synthetic fuel in 1943, then why not today? I'm sure the oil companies would loose billions.. becouse independant companies all over would be making it. look up the patents on synthetic fuels worldwide. and who owns them..you'll see the light. which leads to why are they making synthetic oils? its a gimmic to make billions. they add some plastics to the formula, charge double or triple per liter. sweet scam.