As part of the resurrection of my LX450, I need to replace the worn out Toyo Open Country MTs'. My buddy and I are planning a long road trip next year to the US south west. We plan on doing a lot of wheeling in the deserts. I want to replace the 35s' with 33s' to gain a bit better fuel economy (now at 22L/100 kms - 10.7 MPG). was thinking of switching to 255/85/R16 but after watching too many Matts Off-Road Recovery YT vids, it seems bigger/ wider is preferred. Thoughts?