Does anyone know where I can get my fuel sample tested at? Also what percent of water in a sample would be considered excessive. The reason I ask is my truck is at the dealer and star is having them drop the tank and sample the fuel for excessive water. They have advised me if they find it they will not honor the warranty and I will be liable for paying labor to drop the tank. I am going to the dealer in 2 hours to get a sample from the tank for my own protection. Please help!!!!