Anonymous-0
Well-known Member
Hi everyone, I am brand new to this whole tractor ownership thing. Can anyone tell me what is the best fuel to run my 1940 Allis Chalmers B on? I can get access to real gasoline that does not have any of that rotten ethanol junk in it, but the non-ethanol stuff they sell by me in 92 octane. Will that high of an octane rating be too hot for the engine? Do I need to buy a lead additive and add lead to the gas since they did not make unleaded gas back in 1940? OR, am I fine just running the thing on the regular unleaded 87 octane with 10% ethanol which is what they commonly sell around here. Any advice you can give me would be greatly appreciated. Thanks, David.