Best ratio of gas to Total Fuel Stabilizer for optimal effect October 23, 2012 Solutions Central › Best ratio of gas to Total Fuel Stabilizer for optimal effect 0 Vote Up Vote Down BPfan Staff asked 12 years ago How much Total Fuel Stabilizer (TFS 0416, 0408) should I put in my gas? What is the ratio? 1 Answers 0 Vote Up Vote Down chemtooler Staff answered 12 years ago 1 oz. of Total Fuel Stabilizer to 2 1/2 gallons of fuel is the proper ratio. Please login or Register to submit your answer Username or Email Address Password Remember Me