I had a friend ask me if a vacuum tee will withstand coolant temps. I told him I honestly didn't know. They appear to be made of the same material, but I'm sure there's a difference or two. Any answers?
good question, I'd put a clamp on and try it, would *think* it would work, long as its a smaller fitting- bigger fittings have more area/more force trying to split it open... most the plastic underhood sees pretty high temps idling in summer traffic- but barbs wont hold hot hoses on