Liquid Performance Ethanol Equalizer - great stuff. My wifes 2009 Agility would sputter at 35-40mph. After putting some of this in and riding about .5 mile- it just took off and has run great ever since. I have used Sea Foam from day one and I have 5000 mile on her. I just sprayed (cleaned) out the inner carb. and adjusted the valves with no luck until I tried this stuff. Watch the video demo on youtube, I believe they compare it to Star-tron ! I have another rider try it on his 2005 Triumph and it cleared out his rough idle and help his throttle performance. The local BMW shop swears by this stuff, and now I do.