Check with the Tire Manufacturer for Proper Tire Inflation!

I've been driving on my new BF Goodrich All-Terrain TA KO2 for several days including taking them off-road and very pleased. The size is LT (10 ply) 265/70/R16 - Max PSI Cold 80. The tire dealer advised to put the PSI at 30 which is on the sticker on the door for the OEM Goodyear Wrangler C load. I decided the next day to call the BF Goodrich Co. for their recommendation on the tire pressure. The company representative said to put the cold PSI at 45 for highway driving - and when towing a trailer at PSI 47. Anyway the tires are quiet with excellent handling.

 

Chalk test?