I recently purchased a 1956 Ferguson TO 35. I have 3 questions. 1.) I can't find anything in the operator's manual or on line regarding what octane gas I need to use. I initially filled it with some VP brand 93 unleaded that has no ethanol. But I'm wondering whether it needs a lower octane fuel and whether ethanol is a problem. 2.) Related to Question 1., after filling it with the VP 93, it seemed to run fine for several hours until I followed the manual directions to fully open the gas line to allow the gas in the reserve to flow into the system. Started running very rough. So did I get some old, bad gas when I did that, or was it the VP 93? 3.) What oil is best? Maual indicates it depends on the temp. I'm in Texas, with lows usually in the teens or 20's and highs around 100. Is 10W30 a good choice? Thanks for the input.