I’ve put 60,000 miles on my car in two years. I drive a lot. I’m at gas stations too often. This Diamond Shamrock is my favorite. Why? Everything always works. Unlike other stations nearby, all the pumps are functional. I don’t know when they service the car wash, but I’ve never seen it down. The air compressor always works(remember when air was free? And someone checked it for you?) The squeegees for washing your windshield aren’t frazzled and nasty. Of the four gas stations near me, this is the least convenient, yet I go here most of the time.