I have tried the fuel treatment to see if it will improve my gas mileage. The second day after I put it in I got Check engine light - where the system is said to be lean and misfire in multiple cylinder. At first I was disappointed and felt that I really fouled up my engine. About half a tank this morning and all of a sudden the car felt like it just added an extra 10HP. The pick up and response to throttle was much better. I highly recommend this product to anyone.

Mario A. Javier

Burlington, Ontario