I carry the Slime Safety Spair Flat Tire Repair System in RedHot and as well as each of my cars. I have not had any need to use it but like the redundancy of it with the run flats. The Slime kit includes the air pump and a separate tank of their sealant in line with the air pump. I chose it for my cars since it is non-flammable, does not interfere with the TPM when it is in the tire, and can be washed out with water if you want to when the tire is taken off the wheel.