Just noticed,
My rb25det oil pressure dropped, from the *4 Mark, down to the first line,
normally always sitted at the 4 mark, now its sitting at the first line *unmarked line*,
No oil leaks, I could find, some slight oil residue comming from rocker covers.
Oil level is fine, But have noticed turbo making slight werring or whining noice when boosting hard now.
Thinking that My oil pump could be showing its age..
anyone agreee? disagree?.