I know the Slime brand because I'm a bike enthusiast who repairs and maintains my bikes myself, so when I discovered my first car purchase was a certified used Honda Element, for the the dealer included new brakes and new tires, no valve caps, I knew it didn't really matter what brand of caps I bought unless the brand was Slime. Slime is best known for their instant self-sealing bike tubes. The moment the mucus from the puncture appears in the tube, it immediately seals the hole. They makeβ¦