I use MMO in my gas as much as I can remember too.
I just use an ounce or two as I really don't drive that much anymore. One thing that MMO did for my "A" was to stop vapor lock on my carb. Florida is where I live and vapor lock can be a problem. An unusual thing I found about MMO is that
every time before I go driving. I always check the bottom of the carb to feel if it is leaking. Normally there will be a small residual of MMO that has collected. Not gas, but definitely MMO.
Am I adding to much maybe??
Bob-A