Originally Posted by P2
I think I'll get an oil change and to a Blackstone analysis. I'll be able to see the condition of the oil and Blackstone will show if any antifreeze is in there.
I was concerned about my coolant loss after I bought mine, as my E46 used hardly any at all. I put in UV dye to look for a leak, replaced the coolant, had it pressure tested, and replaced the cap.
The thing that settled it for me was a Blackstone oil analysis that showed zero coolant in the oil. Well worth the ~$30. These engines lose coolant, I just top it up on a regular basis.
I've since then preemptively replaced the oil filter housing gasket to ensure no leak there.