When my truck was stock i averaged about 15 mixed driving and about 17 all highway. Thats an ext. cab 4wd 5.9. Now with my lift, tires, gears, sct, headers, 10x2 air filter, and 50mm tb my mileage is all over the place. Ive gotten anywhere from 16 to 10. No difference in driving or anything its just crazy. I know i need an o2 sensor though.

 

35x1250x20s toyo MT with 20x9 wheels.. rolling a soild 10.8 mpg mix city and hwy i'd like to see what i will get when i get stock 3rd gen 17s and 265/70/17 on there lol i hope for 13

 

Dad thinks its bull**** too but I ran Hay (25 Bales) 7 Miles North, then Empty about 20 miles South then 6 Miles Home and doing that Means 33 Miles. on a 1/4 tank @ 55 Mph. Yesterday I ran that Again at 60-70 mph. and Absolutely Raped My Tank. Since its been around 30 degrees at Max. My Transmission is Slipping Like Crazy (Most likely More Consumption to Run at 2-4K to Shift) but, who knows. Ill take time to Calculate it when I get my Transmission in it.

P.S. (I think my Math is a Little off on that, Probably the Gauge Sh!ttin' Me like usual. And Sorry for Hijacking Thread if it is.)