I stopped at Discount Tire twice recently for their free air check as I had a slow leak, mine was DIY and I was in and out in about a minute, pump preset to 35 psi. Had the tire patched for free Monday and the tires came with the truck, didn't buy them there but I have been DT customer for about 20 years, including my three sons vehicles. I did have to drag out the compressor Monday morning as the tire was at 16 and wouldn't drive on it that way. I went hunting Sunday morning and about halfway to my destination, I got a notice that my tire was under inflated, couldn't find air to save my life at 5 AM!
They work. Other brands as well.
