So - no load revving - is it a bad thing?
 

I have been wondering about the implications of no load revving. While some people have said that it is not great for the engine, aside from normal wear due to running the car in high RPM ranges, what hard evidence is there that it actually creates a high-wear situation? Or does it even? I've heard people say that it's bad, and I've heard theories, but no good reasons as to why exactly it is. Let's assume a standard transmission w/out a park/neutral rev limiter (like my old BMW). Thanks guys...

Check out this link:

http://www.peachparts.com/shopforum/tech-help/30953-126-tranny-rebuilt-%40-160-000-miles.html?highlight=neutral

David

Yea, but that's assuming an auto... I was wondering about a 5-speed... (yea I know MB board is probably not the best place to be asking questions about 5-speeds, but still)...

That "reving in park" problem in the posted older thread
 

does definitely apply to the Z-F automatics used in many BMWs and certain reardrive Volvo models from the '80s, especially their diesels. A whole lot of people began experiencing transmission failures right after they had the newer chassis dyno type smog control tests done in California and some other states, and eventually BMW traced down the nature of the problem and published a special set of procedures for "preparing" the car for the tests, which procedures basically consist of having it idle in neutral, rather than be shut off for some time before the test and then restarted. But to get the correct info, you would have to search at bimmer.org or brickboard.com (Volvo site).