Rick Knoble wrote:
I have a question. Is it safe to assume that a given engine will produce the maximum number of revolutions per unit of fuel consumed at its torque peak? I.E. When is an engine its most efficient? Just curious.
I recall hearing that Mercedes recommends shifting at 2/3 of max RPM in each gear for maximum fuel efficiency, but I could be making numbers up in my head. I've seen it happen before.
-- John L. Ervine 1981 240D 4-spd 270+kmi 1980 300TD 175+kmi 1980 300SD 277+kmi 1977 280S 4-spd 81+kmi 1976 350SE 4-spd 163+kmi
