I have a 2011 Impala, LT Fleet, 225 60 16, with no placard on door frames, engine compartment, glove box, trunk, that tell me the Manufacturer's tire pressure recommendations.. I have changed out the original tires with the same size tire but different brand. Any place out there I can find this tire information ? I have a manual online and in the car but neither one tells me the rec. tire pressure. I put in 35 lbs, to help with wear and gas mileage. Thanks for any help you can provide..:WTF: