[sho305]

Pressure oil can make engines last longer as well as sometimes having an oil cooler that is helpful on an air cooled engine. However yamaha still uses splash engines and states they have less parts so less problems. Indeed people wear out the rings in yamaha and rebuild and still running on same rod and bearings. It can be a larger issue with performance use, but the VC460 has a HD aftermarket rod already. So lifespan may be a little less, but parts are dirt cheap if you don't crack the block or something, and even if you do you can buy what three VC460 for one vanguard twin.