Well, in some cases, 3,000 rpm is a highway speed. On a turbocharged 78-84 OM617, that equates to about 70mph. I guess you're saying that 3,000 was not a nice number for highway speeds. Or else, I completly misunderstood your post and typed all of this just to feel important.:p

-Joe

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'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate

Sooner or later every car falls apart, ours does it later!
-German Narrator in a MB Promotion Film about the then brand new W123.