Recent content by kharding

Thanks for the info. With limited automobile mechanical knowledge, my common sense failed me. So the best solution for both of my questions is to drive as slow as practical in the most efficient gear. (I'll carry a neckbrace in the glove compartment for when I get rear-ended.) But at the...

Speed per RPM Since RPMs have a pretty close correlation to fuel consumed, don't we want the maximum speed per RPM? So if 2000 RPMs get me 60mph that is .030mph per RPM. At 70mph, my tach reads 2500 so that's .028mph per RPM, showing 60mph is more efficient than 70mph. So with this, you can...