Re: How Low Should You Go? (PSI)
It is not an exact science and truly more like trial & error off road. It depends on the tire and how much sidewall height you have. Some tires have too soft a sidewall and if they are aired down too much, you can end up bending a wheel rim and/or losing the bead if you encounter something hard buried in the sand. Alternatively, you can get too aggressive 4-wheeling and pull the bead on a hard turn which can provide you with the unpleasant experience of changing a flat in the sand. Let us know what size tire you have and that 20psi works in sand; it helps others calculate limits and risk threshold, so thank you for your info.
An expert is one who knows more and more about less and less until he knows absolutely everything about nothing.
2011 Jeep Grand Cherokee 4x4 Ltd
Silver, Hemi, 20" wheels, minimal doodads.