So I found something very unfortunate while attempting to change my spark plugs. It's a t5 Volvo 850 and I don't know what to do! There is oil in the spark plug
Volvo 850, S70, V70, C70 (until 1998) – How to change spark plugs
01 1.9T cray oil on valve cover - Volvo Forums - Volvo Enthusiasts Forum