Well I was riding doing 75 on the Expressway, when suddenly my bike starts fishtailing and almost lost control. It felt like my rear tire was spinning out of control. So I pulled over to the shoulder and realize that my rear tire including my exhaust was completely covered in motor oil. This is what I found. Apparently the oring in this sensor failed to do its job in retaining the oil pressure, which caused a mist of motor oil to come out. Spraying all over the under belly of my bike. I need to know what sensor this is.