OK, my 2000 f150 with the 5.4 4x4 is getting 10mpg. I know that's crazy low since I drive 80% Highway. Stock ride height, stock size tires, 265/70/17 running 35psi, I baby it a majority of the time. Don't have any cel codes, minus the 02 sensor.
Things wrong with my truck: exhaust leak at the passenger manifold, no cats. I know it should still be better than 10mpg.
Any tips on fixing the manifold? It's my only vehicle and I'd like to get it done in one day or less.
2000 f150 4x4 5.4 triton. Bone stock, soon gonna change.