What's the best gas ?
I sure am thankful to you guys for turning me on to MX2T (I can't see how the Madison Avenue dyes that puts that "sechsie" marker color into the other oils can be suspended in the oil without adding in some kind of unnecessary particulates as carriers. Even in a thick oil solution, the particulates eventually drop out and form a sediment in the bottom of the little jugs. It's kind of hard to imagine that when the oil is diluted in gas, the sediments don't become even "heavier" relatively speaking -- making the color sediment even more likely to separate out, in the gas can, saw tank, carb, etc.)
But what's the best gas to use ... it seems that within the last year, gas has become *noticably more aromatic -- as in turn the nose the other way. (Which I read as runs "dry" -- not cool). So, something is changing there too. Since a long time around here, all the small engine users used to stick with Amoco. But, their gas became aromatic-dry, so I started changing.
I can almost guarantee you low test (87 oct) will seize up, even an old Homelite. The owner of the station (Sunoco) is fairly knowledgable about his products, and he admits the lowest octane gas also seizes up his own saws and blowers. But he swears by his higher octanes.
Dolmar recommends 91 octane - Stihl and Husky 89, so that might change the best-gas question ...