ran a heap of avtur through an old grader once about fifteen years ago. a cat 12E-21F. After about a 120 hours it cost me about 4 and a half grand to fix the donk.
others reckoned that I should have thrown some oil in with it.
Others also reckon that you should throw a bit of standard petrol in with diesel when the avtur is running low. Me I think I'll just buy a bit more avtur.
there's an old bush ballad that's been bastardised a bit here is oz, one line is;
"Have you ever bin on the kerosene,
when the metho's runnin low?"