so you're saying i can routinely cruise at 95 mph with no excessive wear on the engine? the RPM's worry me at anything over 85mph. where should the RPM's be at any given time? 3500? 4000 just doesn't sound healthy to me.
also, what's going on with my tachometer (needle jumping back and forth between 2000 and 6000, with no corresponding change in actual RPM), and why does it only happen when i cruise at 80-85mph?