Yeah, I usually do about 18-20 psi when i go on the beach, I'm not brave enough to go any lower then that.
on my stock Trailblazer SS with 20x8 rims and 255/50/20 tires I normally lower the pressure to 12psi to gain traction in sand dunes, never had a problem, I have seen plenty of people running 12psi on their stock 4x4.
But I wondered how low I could go on the stock 16x7 rims and 315/75/16 tires due to go on my 97' Tahoe.
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