Forum Discussion
mountainkowboy
Dec 13, 2018Explorer
When we had this rig (read.....should have NEVER got rid of it), 97 12v mechanical, CTD turned up to 375hp with a Garret torque turbo, NV4500 manual trans, 3.55 Dana 80, averaged 18-21 mpg empty. With the AF1140 on her back she was at 11,600lbs and averaged 12-14 mpg at around 65 mph.
That was before low sulfur diesel fuel, it wasn't the same truck on that ls garbage.

That was before low sulfur diesel fuel, it wasn't the same truck on that ls garbage.

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