Answered Rear Radiator Coolant Sample Access

[stang37]

My coach was an August 2015 build. I went to Gaffney in 2019 to have them change out the coolant. The tech talked me out of changing. He asked why change and I told him I didn't like having to test the coolant. How often he asked and I told him. He said too often maybe once a year was enough. So I didn't change and I still test quarterly. It runs about 1k to make the change as sensors have to be changed, heater hoses, oasis hoses, radiator and engine have to be flushed with demineralized water. Lots of water and time consuming for them!!

 

[RandyB]

Thanks to @stang37 i have found the petcock. Sooooo easy. In the photo below, you are looking straight up. The red arrow is on the left frame rail and is pointing forward