Scubadog86

Hi
I bought my first subaru yesterday wrx sti v4 , and although it looks clean and tidy, cam belt replaced on 52k ( car now on 82k ) no oil as far as I can see I don't really know how it has been treated in the past what is the best next step I can do apart from a service , is their a way of getting the turbo,engine etc tested so I know its not a ticking time bomb.and the guy has been running it on normal unleaded,can I just start using normal 99 Ron
The car is standard and is running 0.9 bar so not that high really

Thanks guys

P.s if you haven't already guest this is my first turbo car