Originally Posted by Perfmr2

I dont have a compression tester, but can get a lend of one easily.
When it touched red, I had put the new stat in, bled the system, and then went for a drive. I had had come off boost, and was sitting in traffic when it happened.
I know N is still acceptable, but would rather had it just below half for my own peace of mind.
Ive only had the issues since the oil gauge problem.

Its been suggested that maybe my alloy expansion tank and Airtec readiator maybe to blame. Which I think is absurd.