Taryl tested "everything", including "Mechanic in a Bottle", all produced varying levels of corrosion after months of storage and E87 vs E93 showed "regular E87" worked just fine. The key to E0 (VP Racing Fuel) was that although there was significant evaporation, the bowl and the main jet, emulsion tube had no corrosion, no impurities, remained clean.
Reason I use "Yamaha ACC-FSTAB-PL-32 Fuel Stabilizer & Conditioner" --- which BTW, is not quite same as "Yamalube Fuel Conditioner" --- is the direct exposure of marine engines to ocean water plus I buy it in bulk so not very expensive.
E0 fuel is used in our generators, chippers, lawn mowers, chain saws, concrete cutters, trimmers and also in 2 cycle engines which have a 40:1 or 50:1 fuel
il mix. Have had several warehoused Echo and Stihl arborist saws which started up fine after 2 years -- also stored in high humidity.
For Yamaha ACC-FSTAB-PL-32 -- 1 ounce treats 3 gallons for short storage or using right away, otherwise use 1 ounce per gal if storing fuel for 6-8 weeks or greater. So ratio of mix is either 1:3 or 1:1