Have you heard of a gasoline pill called EnviroTech. Its suppose to give a 10-20% increase in mileage and increase hp.
have you heard of a gasoline pill called EnviroTech on 2010 Honda Civic
no, but do not fall for these additives that do nothing for your car. good maintenance is the answer to long life and reliability.
There is no magic pill. Read this article and watch the video: http://www.bgprod.com/news5.html