If the tires have tubes, then fluid would be the way to go, my tractors tires are full of fluid for traction.
There is a fluid that is used for that purpose.
I have only mowed the yard twice, so I haven't really figured out the best way to proceed, I really appreciate all the ideas, that will give me many alternatives to choose from............Thanks guys!
I just thought of something, I could eat more ribs and buffalo wings and gain about thirty pounds then I wouldn't have to mess with all that other stuff.....Lol