There's 2 gas additives you need to know about, ispopropyl alcohol (Isopropanol, 1-propanol, IPA) and mineral spirits (Varsol etc)... 90% of the miracle in a bottle stuff is only those, or a combination of those. The other 10% has dashes of stuff that is very close to lacquer thinner or brake cleaner, even transmission fluid in it. Acetone whether it gains MPG or not also helps clean crap out.
If you suspect gummy injectors, try first 4oz of mineral spirits in a tank... if you suspect carbonisation or sensor or cat fouling try 4oz of Isopropyl first.
All the rest is marketing...
Use at least 70% pure IPA for cleaning, if you suspect water contamination or are trying to cure old gas, use 99%
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I remember The RoadWarrior..To understand who he was, you have to go back to another time..the world was powered by the black fuel & the desert sprouted great cities..Gone now, swept away..two mighty warrior tribes went to war & touched off a blaze which engulfed them all. Without fuel, they were nothing..thundering machines sputtered & stopped..Only those mobile enough to scavenge, brutal enough to pillage would survive. The gangs took over the highways, ready to wage war for a tank of juice
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