I tried it, no big deal, went back to using MMO and slowed down to 63mph did the best to increase mpg. U can google Motorkote and get more reviews. Its to expensive. Just go slower on the road, thats the best way.
I used to use it. It smoothed my apu down quite a bit when i added it. Now i run amsoil 5w30 in everything I dont use any additives anymore. Except a can of Seafoam when i change the fuel filter.