Just use MMO, it works, its inexpensive, and all Lucas does is sell u the sizzle and not the steak. As an option, use one ounce of 2 cycle oil with tcw-3 to 5 gallons of gas, will also act as a ucl and work great. Both of the above will clean up ur fuel system. PS,,,dont take my word for it, look both products u on the net and do some research. U can find both in here in the search section too.