As title, what's the service schedule on these engines? Are they good solid reliable engines? Haven't read anything about cons as of yet. How often should the haldex be serviced? What's the clutch life like with the serious torque? Are these cam chain or belts? Expected life of a looked after engine? Sorry for the amount if questions just trying to get clued up so I can go into a dealership armed, haha. Thanks in advanced, and is there anything else worth knowing about these?