TW is using coolant

[grelise]

Due to age and heat cycles in engine bay, it may have just expanded enough to slow leak when hot but contract when cold, thus being a bitch to locate the leak.

[cooperplace]

Due to age and heat cycles in engine bay, it may have just expanded enough to slow leak when hot but contract when cold, thus being a bitch to locate the leak.

Yes, and it's not under pressure, so a pressure test doesn't pick it up. But someone here suggested this hose could be the culprit. There's always great advice here, much appreciated.