I added the 15oz "concentrated" Rislone treatment about 400 miles ago to 3.5 qts of Maxlife /ML Syn with ~3800 miles on it. I plan on changing the oil around 4500-4800.
Sat night, coming back from a ~150 mile (each way) road trip, the car got a LOUD lifter tick after sitting in a drive thru line for 10 mins. Its doing something. Not sure what, though. Tick went away after returning to the freeway, and I haven't heard it return, yet. Oil level remains full.
Comp. readings were a waste - my before ones were useless due to a cheap-o tester, and I wasn't about to buy a new one. If it does any ring cleaning, I'm hoping the results will show up in improved MPG readings, as I have good records for those. I'll also do a UOA, and see if anything is affected.