?? I thought Sheridan was in Wyoming?
Edit: Google shows there’s a town named Sheridan in Maine too.
Yes, I clearly meant 5’, I used tp snowblow the perimeter of my yard so my dog could not simply walk put of my yard over my 4’ chain link fence.
I prefer to keep the summer air in my tires. I figure it is less dense, so it will make my car lighter and improve gas mileage, which suffers in winter. 
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I use hydrogen, my car just floats down the road.
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Another advantage of hydrogen, in a pinch you can use the air in the tires to find engine vacuum leaks.