Help: 2 Issues With My R34 Gtt

[Carbon 34]

Valvolene is best left to the daily . It doesnt seem to like rb engines , rb30 had massive lifter noise ( hydraulic lifters) when i used it to save some cash

But yours isnt that noise the valvolene tends to not build a film on parts like other better brands

i found royal purple in rb's isnt as smooth as redline or mobil 1 , I use redline in everything And never had oil failure in any car over many many years

I would find a super long screwdriver or hose and use it as a mechanics stethoscope to find other issues just watch the moving parts and hot turbo

I would be certain you have other issues as well , if the oil is black thats fine thats what its supposed to do is capture crap but if it went beyond change interval thats a problem a month or two not so much but more then that it can cause havoc in high power turbo engines and lead to turbo failure and ring issues or even fling a rod out if the bearing is coked ( burnt on ) in old baked on oil , that was a huge problem in 80's with turbo failures galore