Does anyone have any real proof that anything will happen if you don't change the oil before storage, Or is it all hearsay?. Should you really change the oil you changed in the fall, in the spring when you start using your bike? Do your tires really go bad if not lifted off the ground ?. If you leave your battery on a tender all winter, is there any proof that it will ruin your battery?. I'm looking for real hard proof, not what someone told you about what happened to their friend or cousin. I'm trying to get the facts straight here.,,,