> reaches 2 litres.  Lubricating properties of motor oils begin to degrade
> at temperatures beyond 240F, and the typeIV engine in a bus frequently
> reaches these temperatures during extended summer use.
>
> The Wasserboxer engine is a much more complex engine, partially do to the
> manner in which the watercooling for the heads is implemented.  The engine
> durability is much better because the operating temperature is maintained
> around 200F maximum, so the engine does not reach temperatures where the
> oil begins to degrade.

Hey, you answered the question to my engine temp post.
Thanks.