It helps alot like 5 10 lbs alot of people have been buring there vechicles I usually run 25 and have had no problems but try it first if you feel it starting to just sink STOP and let the air out have a blast
It is recommended because anything can happen on the beach. There could be deep ruts that you could fall into or deep holes. I suggest it. We air down each time we go.
I have an F150 FX4, with 33" Goodyear Wranglers and haven't aired down ever there. I do run 4-low because of the amount of bumps out there. I very rarely see a Jeep struggle out there.
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