Goran,
You got a bargain then Goron, very tidy machine well serviced, recent overhaul at HM.
Andrew,
I have been using truckmounts with the 16hp B&S engines since the early 1990s. Our local B&S dealer always told us to use SAE 30 oil. This is what i have always used and have never had a problem with it. You can get this from most good car spares shops although it can work out expensive from them. If you have a Machine Mart near you id get it from there. I know that some CCs use other grade oils aswell though.
Richie.