How much CA40 do I need to use per tankful?
One ounce of CA40 will treat 15-20 gallons of any type of fuel. Going leaner than 1 ounce per 20 gallons will leave you with no results. However, if you treat the fuel too richly, even though you will get emission results, you will not see any mileage increase. On your first fill-up with the product, remember to add enough CA40 to treat the entire tank. On subsequent fill-ups, only treat the amount of fuel you add. To assist in proper measurement, all Internet orders with CA40 DIRECT come with a free syringe.
