I love Ride-on.
I use 14 ozs of the "auto formula" in my 205/ car tire. I wish I knew what the difference is between auto and motorcycle other than the auto formula is a good bit cheaper and comes in 16 oz bottles. At one time, I think MarkT was going to run a comparison between the two formulas to see if it was a marketing thing. I never heard the results.
Both motorcycle and car tires run similar pressures, speeds and tempertures. I can't figure out why the manufacturer says not to use the auto formula in motorcycle tires.
BTW, to answer your question, I used to use 11 ozs in my rear motorcycle tire. The tire stayed perfectly balanced it's entire useful life without the need for external balancing weights.
I emailed the company that makes it. They told me the m/c formula is thinner so it reacts quicker to changes in direction and flows up the sidewall. I asked about running the car formula in my c/t and they still recommend the m/c formula for the same reason.
Marty