Gas has 35-40 % aromatics so adding 2oz per 10 gallons is suppose help it how. What concentration is that .15% and that suppose to help vaporization. I can see it cleaning out the crud on a high time engine but thats only going to help until it's clean and then it won't make any difference.
I've tried this in 3 cars, one of which was a blind test. Zipp, nada, nothing on all accounts. I guess that's why the gas pill and increase mileage formulas make money because there is always someone that will get an increase in FE.
YMMV
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