HHMMMMM, I was going to post differently, but I think you need to dump it in your truck a little at a time and put fresh fuel in your boat, even if its premix.
They don't put a number on it cuz it all depends on the temperature and exposure to oxygen. If it's put in fresh gas, it helps for a matter of several months in average conditions. Adding it to gas that is already old does no good except to keep it from getting worse. It won't restore old gas.
I'm far from being an expert but I was told by a local small engine repair shop that the new gas formulas break down fast and should not be kept in any tank for much more than a month, even with Sta-bil.
Originally posted by garybli:<br /> I'm far from being an expert but I was told by a local small engine repair shop that the new gas formulas break down fast and should not be kept in any tank for much more than a month, even with Sta-bil.
