I had nitrogen put in my 41 ft motor home tires when I purchased it in 2012. I now need to add some nitrogen, but I can't find any dealers in the Baltimore, MD area who can do it. There are plenty of auto dealers who supply nitrogen to cars and small trucks, but none of the 8 - 10 dealers that I called can help me. I have also called truck tire dealers, but I could not find any who supply nitrogen.
If anyone knows of a dealer in the Baltimore area, or anywhere in PA near I83, I would appreciate hearing from you. Thanks in advance.