I read in a CAT operators handbook that kerosene can be used in cold weather at up to 50-50, but performance suffers. CAT says that you can use oils as bad as used motor oil but need to clean the injecters often... and change the fuel filters more often. I have read about soy oil or any veg. cooking oil burning just fine in diesels. CAT recommends to fill the fuel filter with trans. fluid when changing, because the detergents help clean the injectors.

__________________
1983 300SD 343K everyday car
1983 300SD 285K from junk yard-tooks parts from deer car- runs great. Brothers car.
1984 300SD parts car-Hit deer
1979 300D 175K non-turbo "Doctor"
1979 300d parts car