A buddy of mine that has been riding ATVs since they had only 3 wheels told me to put the Green Slime in the tires and you will almost never get a flat. Another guy told me not to because it's a freakin mess when it's time to change tires. I'm just wondering what everyone thoughts are on the subject? The stuff is not cheep either, is there something cheeper that would work just as well? I remember as a kid my Grandfather mixing up some white glue and water and fixing a slow leak in my basketball...HA HA! Thats just the way he is, never threw anything out without trying to fix it first. I have a slow leak in my RF tire and the Green Slime is tempting, should I go for it?