Fuel quality is of extreme importance in operating a farm tractor. I believe the sincerity of the The Tractor Vet in his insistance on 93 octane fuel. I respect his opinion. I believe the fuel delivered by the bulk distributors in his location was of poor quality control (especially from one source, maybe a particular brand or farm supplier, that had a desirable price. (I suspect it would not have gotten to 85 R+M/2) I have been around farmers with 6cyl gassers that have used "regular" gasoline in them from new without any detonation issues, and expected engine life. When the lead free fuels were introduced no changes were made. When alcohol was added, no changes. IH Oil with Low ash was used (or premium brand name diesel oil that had limited ash in its formula). A coked up engine with radical deposits in the chamber will be far more successful staying alive on 93, than 87 R+M/2 fuel. I found this in tractor Data .com if it is relevant. Jim Interntional Harvester C291
Fuel: gasoline
Cylinders: 6
Valves: -unknown- Bore/Stroke: 3.75x4.39 inches [95 x 112 mm]
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Today's Featured Article - Fabrication (Who Me? Make it myself?) - by Chris Pratt. First of all, what are the reasons for not fabricatin your own parts? Most judgements on what should be purchased rather than fabricated stem from: Originality - If the tractor restoration is to be 100% original, it is likely that you should spend the time and money to locate the component in the used or New-old-stock market. Since this can be extremely difficult, you may want to fabricate the item or purchase a modern replacement temporarily, but eventually, you s
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