OK, ballpark for the Pacific Northwest: Every six weeks in the summer, and every three months the rest of the year.cpatbay said:How often do you have to top up/add Stan's sealant in your tires? I know it all depends on how much was initially put in, summer months vs winter months, etc. But just want to get a ballpark figure so that I can keep the sealant in my tires *fresh*. Thanks.
I ride a lot, if that matters.