Swanicyouth
New member
I replaced the CPV valve on my BMW M. It wasn't leaking - but "sweating".
Anyway, this is a common upgrade on BMW S54 motors. ECS tuning sells a viton o-ring. The repair is a huge PIA - but I won't go into details here.
So, since BMW M uses Castrol Professional Oil, I bought a black light to check for leaks.
No leaks. But Castrol Professional oil has a UV dye in it.
Oil looks like this under a BL:
Anyway, I realize this is going nowhere. But, I washed my car after and used some Mothers QD to dry it. I got it for free and was surprised how good it was.
Then, I realized black lights show paint pretty good in the dark.
Mothers QD is pretty nice.
Anyway, this is a common upgrade on BMW S54 motors. ECS tuning sells a viton o-ring. The repair is a huge PIA - but I won't go into details here.
So, since BMW M uses Castrol Professional Oil, I bought a black light to check for leaks.
No leaks. But Castrol Professional oil has a UV dye in it.
Oil looks like this under a BL:
Anyway, I realize this is going nowhere. But, I washed my car after and used some Mothers QD to dry it. I got it for free and was surprised how good it was.
Then, I realized black lights show paint pretty good in the dark.
Mothers QD is pretty nice.
