Apparently nitrogen does not leak out as fast as plain air.

Since air is motly nitrogen, you would have to assume all the oxygen and argon are what leaks, so if you keep refilling with air, the portion that is nitrogen will increase and eventually you'll almost pure nitrogen anyway.

I would not waste my money on straight nitrogen in an old truck.


1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble...