Originally posted by mikec
					
						
						
							
							
							
							
								
								
								
								
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		Mine with heavy 22" wheels and 36" tires wouldn't get 13 hwy unless I was towing my car hauler.
My avg. hwy mpg was around 17 with a best of 19 mpg a couple of times with stock 20's.
My best tank on my 6.4 is a smidge over 17 and I'm averaging a little over 15 hand calculated combined. This 6.4 is my favorite truck I've owned so I've gotten over the mpg.

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