Originally Posted By: jchrisf
Thanks for the reply... I'll stick with the 6oz. to 15 gallons then :thumbs:
You might want to play with the amount. My Kia has a 15 gal tank also, and I use 4.5 oz. If I were to use 6 oz, I would end-up with more than 4oz/10 gal concentration. I try to refill when I have about 1/8 of tank left, so I can get only 12-13 gallons of gas in. If I were to add full 6 oz, I'd be over-treating the gas, since the gas in the tank already has MMO. With 4.5 oz per 12 gal it works out to be about 3.75 oz per 10 gal. Enough to increase my mileage, but low enough to keep me from compounding the concentration and loosing MPGs.
Before that I used to add 6 oz to every other fill, but it got old quick. With 2 vehicles it is a pain to keep track of untreated vs treated gas tanks.
My Isuzu has a 19.5 gal tank and now I add 6 oz of MMO to every tank.