I got an Audi 80 B3 1,8 S 1988 around 8 years ago. First time I had to change its oil I decided go big. It was around 160-170 000 kilometres with no blowing from the oil cap while the engine is running. So i got XADO 10w-60 luxury drive. It's a bit expensive but it payed of in the end. 200 000 kilometres later there's still no smoke from the oil cap and I get barely 0.1 CO emission maximum when measuring.
Pros: no smoke from oil cap
Cons: a bit expensive
Vehicle:
Audi 80
Mileage: 170000 km
