I don't know what's in this stuff, and I'm not sure I want to. I just burnt an entire quart of the stuff, 4 oz to every 10 gallons of gas. Wow. I'm amazed it works so well. No more hesitation. Idles smooooth. Runs smooth. I'm sure you guys will tell me that I shouldn't put anything that's a "mystery" in my engine. however, I figure it's been around so long (Since 1923), it has to be more than snake oil. I remember my Grandfather had a can of the stuff in his shop. Back then, the label was even more mysterious. I've used other fuel injector cleaners that cost much more and did nothing. The stuff looks like ATF, but it's older than automatic transmission. It smells like Ben-gay, but I wouldn't want to get it on me. All I know is that the Hippo's happy.

~Dan
85 Westy (Hippo)
original owner