If you want to clean it why use an oil? (diesel and kerosene are oils)
Get a gallon of mineral spirits. That will clean it and anything else petroleum based.
From my TM "... wash all parts in volatile mineral spirits paint thinner or dry-cleaning solvent, dry thoroughly, and reassemble."
Kero and diesel will not readily ignite. The VAPORS are what burn. You can put out a match with kero/diesel...