karomoney

I have never heard of the n62 making it that far with no valve stem seal problems. That is a miracle engine.

I'm excited to see how the engine will treat me for the next 100k of spirited driving.

karomoney

The v8 5 series (except m series bmws) I think is one of the best sedans you can buy with the amount of power it has. Very hard to find. As much of a pain these things are, and how expensive they are, there's a reason people love them so much!

I don't smell any coolant, and can't see any upper bay leaks. As long as ECT is in the acceptable range, the problem can sit on the back burner for a little while.

Thanks!

karomoney

I had considered pulling the engine but that would put this (my daily driver) off the road for a couple days longer. Besides, I'm terrified of pulling it.
Maybe if I had some more time, I absolutely would.

Have you pulled the n62 before?

dingolfing

No, I would never want to pull this beast of an engine out! I only recommended it since the valve cover gasket/upper timing cover job is a good 10+ hours on the first try and the alternator bracket gasket can be just as long.

Also, I've used Mobil 5W-20 High Mileage Synthetic Oil and it swelled the valve stem seals and stopped the oil burning. Good if you do not want to attempt the valve stem seal job yet. Oddly enough, I used Castrol 5W-20 High Mileage Synthetic on the next oil change and the oil burning came back, so I'm going back to Mobil One.

Giubo

The "gasket sweller" is in every motor oil (more or less), so use it. It will not harm anything at all.

I can not follow your diagnostic regarding your boiling coolant. Just check the coolant temperature over the secret menu (it's a 5 minute job) and btw it's always a good thing to change out the inexpensive cooling water cover every 5 years or so. The pressure regulator is inside. Do you lose any coolant?