Jim from RI said: (quoted from post at 01:19:16 04/07/13) I have an old Farmall (50+years old - relatively small machine). What should I use for Gas? 87 Octane or High Octane? Should I put a lead additive in with the fuel?
Thanks for any insights.
Well you did not say what model Farmall, but all my ole junkers including my Farmall h, Farmall M, and John Deere A get 93 octane from me. They probably do not actually need 93 octane, since none of them are high compression engines. I mainly choose the 93 octane since I believe it has a chance of lasting a bit longer in storage before causing problems on a tractor that sits around a lot. 93 octane is usually less likely to have as much ethonal in it as 87 octane has. I try to avoid ethonal if I can for tractors and 2-cycle stuff too. I do not mind ethonal in my car though as it gets used up fast. Also as gas sits around it can lose a few octane. If you start out with more octane than you need then not as big a deal if you lose a few octane in storage.
As you know, no gas will keep forever, so try to run it some. I do not use any lead additives at all.
This post was edited by rankrank1 at 17:45:02 04/06/13 3 times.
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