Trying to buy a new Kubota and narrow down options. My dealer tells me that they no longer carry any tire sealant products that work with fluid-filled rear tires. They said they used to. They might be open to me buying it and bringing it to them to install the sealant when they fill the rear tires. I will be using the tractor in mesquites and sealant is a must. Anyone have any suggestions of what works best with fluid in the tires? Thanks