i wanna know more bout slant sixes

I had an 89 XJ (Cherokee) with an 8 inch lift, 35's with 4.88 gears, locked front and rear, and my last trip netted me 19 mpg on the freeway. I was running an open element air cleaner, and a free flowing exhaust. I think it had over 168k in mileage when I sold it.

I actually thought my straight 6 was fairly good on gas for what I was asking it to do.

YMMV (Your Mileage May Vary...8)

Thanks,
OldMoparsRule