I get 15% 2 cycle glow fuel from Stan at S&W Fuels in Easton, Pa. We have been using his fuel for 25 years with excellent results. I run two 4 cycles and the rest 2 cycles and in the hot weather I add 2 oz of Beanol racing castor oil. Most of my engines are from the early to mid '90s and run very well. Opt to the rich side on the high needle, they run cooler and last longer. Stan ships fuel all over the East coast. Tell him Bill from LVRC sent you.