I plan on ordering 2 bottles of AutoRX for my Cutlass Cruiser wagon in a few weeks, and already I'm wondering what to do after both treatment cycles are done. Since I'll only be using 8 ounces per treatment cycle, I'll still have 8 ounces left at the end of 2 cycles. Should I split the 8 ounces in half and use them as a maintainence dose after both cycles are done or do a third treatment cycle, or give the 8 ounces to my brother to use in his Civic? One question I have, if during the ARX treatment cycle, if you need to add some topup oil due to a leak, do you add ARX to the topup oil?