Auto or manual? Is it geared right for 35"s? I've got a '91 xcab with a 3.0 (240K or so) 5 speed, 5.29s, and 35" tires, plus sliders, spare in the bed, full toolbox, etc. and I get 17-18 consistently. I don't drive like a granny, nor do I drive like I stole it either (only on the rocks
![Hammer :hammer:](https://board.marlincrawler.com/Smileys/marlin/hammer.gif)
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I'd say a tuneup may be in the works, or even ask him if he's ever really calculated it.
![Thumbs Up :thumbs:](https://board.marlincrawler.com/Smileys/marlin/thumbs.gif)
I hit my trip meter every time I fill up, and then the next time I fuel up, divide the amount of miles by the fuel I just put it. Not 100% accurate, but good enough for me.