The one i've used is just called enzyme fuel treatment. On the initial dose it's 1oz to 3 gallons, then after that dosages run 1oz to 6 gallons. i think the bottle is 8oz's? I've always gotten mine at advance auto or kmart's. Not sure if walmart carries it. Their is like 3 formulas, 1 for gas, 1 for diesel and 1 for a tank cleaner. the one for gas is the one you'd want. It does some in different sizes and such, from a small "shot glass" size for a one time use up to like a gallon size. It's defiantly worth a shot, cause after i used it for about a month i stopped using anything else. Not to mention it was the only thing i ever used that fixed the hot start issue i had with my 85 RX-7. When it was cold, it would start in a heartbeat. when the motor was hot and set for about 5 minutes, it would start in a heart beat also. But when the motor was hot, and it sat for about half an hour, you would sometimes have to hold the gas pedal down halfway-3/4 way in and crank for about 5 seconds. I tried seafoam, marvel mystery oil, lucas, gumout, etc. nothing work. After half a tank of star tron, it cured it and the problem hasn't came back. I talked to the guy i sold it to about a month ago and he said it's still doing good, so it worked for me So defiantly give star tron a try. If it's anything "minor" you can give these "mechanic in a cans" a try. but if it's something "major" like being outta time, coil, etc then these "liquid mechanic" products may help or mask it, but probably won't cure it. If you need me to upload a picture of the bottle i'm talking about just let me know and i'll post a picture of it, but it shouldn't be hard to find. And if you go to an auto parts store, you may have to locate it yourself. I went to the stores here and asked if they sold it and the majority of the people there said they didn't sell it and had never heard of it, but lo and behold i looked for myself and they did sell it.
