The factory seemingly never recommends full inflation. Take both Toyota 4x4's we have. Either door plate says 28 rear and 29 front. Both run 16's and if you run LT' s like BFG's or?? that's pretty damn low especially if your loaded or towing the 5K max. Every LT tire Ive bought indicated 36 to 80 in some cases. Wouldn't 28 psi cause overheating and eventual failure?
Reality is merely an illusion, albeit a very persistent one.