So my heater inlet hose sprung a leak, its one of the only hoses I haven't changed, I guess I will change everything in the dash now. Well I have to go to my friends shop anyway at some point so I will patch it with a section so I can drive it there. I saw green fluid when I parked, first I saw this, obviously dripping along but I found the source quickly. Now I have to go get a piece of hose that size. I think I'll go all silicone for the replacements.