.I have restored cars over the years and one thing that an old-timer taught me was use Ammaco gas 93 octane ..It is one of the purest fules you can buy.. It can sit for 10 years and never go bad....Its clear when you put it in the tank and stays that way.. If you pour some on your hand it evaporates and barely leaves a smell.. Its really all you need, But as an additive I use mystery oil , not to treat the gas but it helps lube the valves.. Thanks PR
