This may be part of the answer we are looking for in gasoline. Check out this link:
Shell develops new premium fuel for the engines of old cars | Classic Car News
Shell has developed a premium fuel that helps vintage car engines cope with ethanol and other components of modern gasoline
Maybe, but a Model T has no need of 91 or 93 octane. Could be it isn't worth the extra expense for the premium fuel. Now if I had a 60s muscle car, that would be a different story.
Yep, overkill for a 20 hp low compression engine.
I'll have to look for it when filling up my wife's '67 Mustang. Only problem is, there are practically NO brand name gas stations in my area. Shell or otherwise. All seem to be chain convenience stores with Lord only knows what brand of gas.
Being in a general rural area, I found a regional retailer ('Fleet Farm') handling a non-ethanol mid-grade at their pumps. 'Select', then pump a gallon into the daily driver to flush the ethanol from the pump hose, THEN into my cans. The T's and all my small engines become the beneficiaries of 'non-ethanol'. Run great, and will last longer.
To get ethanol free fuel around here, I have 5o buy premium. it'd a few cents more than 87 octane, but I have zero issues with water or it gumming up.