Hi, 2020 t680, had to replace a few airlines on the air dryer and saw this purge/drain valve on the side of the air dryer, and pushed on it, and yellow liquid started coming out, so I did the same on my air tank to see and it was fine, what could it be and is it safe to release all of it, ty
Yellow liquid from air dryer
Discussion in 'Trucks [ Eighteen Wheelers ]' started by ColumbiaBoB, Jan 9, 2025.