Thank you very much everyone for the clear explanation, I will try that and let you know.

Sorry for the silly question, you mean right on the surface of the hoses or inside?

Hi all, I am a proud owner of a (rare here in Italy) 1995 854 GLT, NA engine.

It's been some time I've been experiencing issues when the engine is warm. I'm going to describe contexts and symptoms:

I drive the brick approx once a week, mostly highway use. Car has 86k miles.

Problem :
1 - When ...