Well put, Gary.
I very much stick to a 5k mile OCI. I fully understand that there are many oils that can go farther. But for my vehicles, some of which average about 10k a year, it an opportunity that get's me under the car 2x a year. I can visually check for stuff, and OCI all at the same time. So 5k mile OCIs make for a good (and easy to remember) OCI. My wife, (a vehicularly-challenged type) can even remember to tell me "it's got x5,000 miles, Honey, don't you have to do something to it????
With that in mind, my current ARX application is going 2.5k miles, and the rinse will go 2.5k miles. Easily multiplied into the 5k mile OCI.
Some people fret over the exact mileage; I don't think the performance of ARX is that picky. It works best with group II or III oils; that much we know. Because ARX works very subtlely, it's likely there is no real beginning or end to it's effect. The longer you use it, the longer it works. I would suspect that it has some type of finite life, but that's probably well past the typical application/rinse phase.
Frank has had to constantly keep up with people trying to "tinker" with the application and rinse phases. They are looking for an absolute answer to finite questions.
Do you measure your shampoo to the last milli-liter? Do you wash your hair for EXACTLY the same number of seconds each time? Do you rinse your hair for EXACTLY the same number of seconds? Do you get a clinical cleanliness analysis of your hair? At some point, we all just wash, rinse, and dry because the act of compulsive "need to know" is outweighed by the convenience of just getting "it" over with and moving on.
ARX is fantastic stuff. I am 100% convinced of it's abilities, and I now have it in several of my vehicles. But I don't sweat the small stuff; life's just too short.
