Fuel system cleaning, carb bowl cleaning, emptying the tank, diluted oil, way more frequent oil changes blah blah blah. For a race car it’s just maintenance, really no big deal. For a street strip car, it’s excessive and gets old real quick.
So far I’ve had no issues running methanol. My oil doesn’t get milky, never drain my fuel system between race weekends.
The only thing I do after each pass is take my breathers off my valve covers for a few minutes and let the moisture evaporate. Oil stays perfect.
end off season, I drain my tanks, spray WD-40 in the barrel valve, and change oil. That’s it.