hi all!:)i Had this info not too long ago. did a google and couldnt find much other than possibly,0.1 oz, per gallon. i seem to reember reading .75oz. a gallon. i Use MMO alot, 4 ozs per 10 gallons. i drive a 98 corolla, has about 10.5 gallons, but i never go below quarter of a tank..thats 7 1/2 gallons too fill. What would be the correct ratio, ozs. pergallon, as maintenance dose, of tehron concentrate or gumout high mileage, gumout too use? like the idea of adding, for fun, and for some extra additives:) i always use CITGO gas, advertising they use tri clean technology. not sure what that is, compared too additives mobil or shell would use, or better than citgo. do alot of stop n go driving.