I've used the red -copper RTV and it works as well. Just a note, if you're used to gasser vw running mostly at about 60 psi at highway speed, the oil squirters and turbo take a bit extra oil and drop pressure to about 35 to 40 depending on oil & temps. At idle about 7 - 10 psi. If there is no sealant between the squirters at normal engine temperature there is no oil pressure. I've had this happen in my younger years.
the oil squirters and turbo take a bit extra oil and drop pressure to about 35 to 40 depending on oil & temps.