I'm grateful for your product. I drive a 1979 BMW 528i with more than 150K miles and my fuel injection system was pretty clogged...even after replacing the fuel filter, fuel pressure regulator and even using higher octane gas on a daily basis the symptoms did not improve. It was only after I used your fuel treatment that I began seeing dramatic improvement in the acceleration of the vehicle and overall performance of the car. I'm also grateful for the oil stabilizer which reduced oil consumption in my old engine by as much as 70%!! I now plan to use the synthetic oil on my next oil change and hope to improve mileage and viscosity on my old 1979 BMW 528i!!