Hey Scotty, I saw this video on how to make a rubber belt last longer in a car using like a rubber protection liquid. Is it a good idea to try this next time I change a drive belt and timing belt on my car? https://www.youtube.com/watch?v=wFD2t16Gjow

bad idea, put Nothing on those belts, when they crack replace them. That stuff can actually make them wear out faster and slip