I was very skeptacal of the gas/glow mixture thing, but decided to try it. And now, I am a believer I mixed the 20/20, methanol, 91 octane gas ratios and ran it in my new SPE-26. Absolutly no black goo and excellant idle and transition/RPM. I cut 8 oz of ignition and battery. SPE-26 and muffler is now only 34 oz. (not bad for a 26 cc engine) and no concerns of interferance. I used a zenoah adapter and "hot" glow plug.