The lamp oil that Weems and Plath reccomends vaporizes at a fairly high temperature. It is not kerosene or what the Brits call parifin. Some lamps like the circular wick trawler
lamps have to use it to prevent flare ups. Common kerosene, paint
thinner, mineral spirits etc. vaporize at too low a temperature, won't maintain a constant flame and flareup sending carbon floating throughout the cabin
. BTDT have the black overhead to show for it and don't want it to ever happen again. Negatives for the stuff is it's expensive, and the parafin (wax) precipitates out at a fairly high temperature so may cause problems if the ambient temperature is below 40 degrees or so. Kind of like summer diesel
in the winter.
Most lamps will burn kerosene, paint
thinner, or mineral spirits without a problem.