This isn't really a question. It probably even belongs on shop talk or general chat. My car was sputtering this morning, not wanting to stay crunked (sp?). When I got to work, I had one of the teenagers who were out of school today take the car to have the oil changed (I put 3000 miles on the car in about 5 weeks). The guy said there was probably water in the fuel lines that froze overnight. He said to buy some of the STP gas treatment from Wal-Mart to put in the gas tank. I stopped at Wal-Mart. The cash register prompted the cashier to ask if I'm over age 18. She asked to see my driver's liscence. I've never had anyone ever check my id to see how old I am. It's been quite a while now since I've been 18. I guess I will ask a question. What's in the gas treatment that requires an ID check that isn't in the fuel injector cleaner that I also bought and didn't require me to be carded?