I started up my new build on straight TruFuel50 that is sold at Home Depot in its aisle that contains leaf blowers, chainsaws, and trimmers. TruFuel50 is a fuel that is premixed with 2 cycle oil. It does not smell like gasoline, but like acetone. The truFuel50.com website does not disclose what type of fuel is used. It smells so strong of acetone that I wonder whether if it is pure acetone mized with 2-cycle oil. The product is manufactured for use in 2-cycle motors found on leaf blowers, trimmers, and chainsaws, but is it well suited for the chinese 66c motors?