New FREIGHTLINER design, for all you Truckers...

Back in the late 60's early 70's when I drove, 4bMPG was considered good. lol

Of course diesel was Between $.16 and $.23 per gallon. a gallon, too.

Yeah, I get 6 to 6.5 on a good day. If I could remove the muffler, run oversize pipe and remove all of the emissions crap, I bet I could hit 8 or 9.