My LR3 has 19” wheels with 255/55R19 All Terrains, should I air down or up for off-roading? Sand? Rocks? Never done off-roading before

Hello, I recently purchased a 2006 LR3 with OEM wheels and tires, but I need to replace the tires because they have little to no tread left. The rig is black, and I would like to replace the stock wheels with 18" black wheels at the same time I update the tires. Looking for all season tires...

I have been busy building my Discovery into my idea of the perfect overland machine. So far, the major things I have installed are: Britpart steel front bumper Badland ZXR 12,000 lb winch Terrafirma 2" suspension lift 275/65 R18 Kanati Trail Hog A/T tires It looks awesome now, and has had no...