Customer Reviews

FFI MPG-CAPS are a revolutionary engine treatment that can increase mileage, increase the life of valves, spark plugs and glow3 plugs, inhibit formation of unwanted residues, reduce carbon buil-up and eliminate after run THEse caps work in gasoline and diesel pump fuels. You never need to use premium gas again this is a large savings at the get go. How to use the MPG-CAPS Step 1 Use 2 MPG-CAPS when you fill up 12-22 gallons. Step 2 Next fill up use 2 more caps. Step 3 Continue using 1 MPG-CAP per each 12 to 22 gallons (tank full). These cost me $1.65 each I am selling them for .50 each total $105.00. I am in to many MLM business and am getting out of all of them. I do use these caps and get great milage I am keeping a 1 year supply for my self. good luck If you deceide to get them.