I have two questions. Should I use 30 grade non detergent or detergent oil in the '41 R2 Cat? It has excellent oil pressure and runs seems to have excellent compression due the fact that my cousin always put oil on the pistons when stored for long periods of time.
Second question- I did carb work on the Cat this winter and figured out it was being run way too rich for the past 60 years. I reset the high speed jet to the correct setting and it runs smoother than ever. The question is if the Cat was run on kerosene would the carb have been set to a richer setting to accommodate the alternate fuel? I have an original '41 operator's manual and it does not give that info. Just curious!
Any help is appreciated!
Mr. T. Minnesota