I recently bought a Honda truck and the tires are Michelin LTX M/S P245/65 R17. I was going through the manual and it showed how to rotate tires. They showed two methods - one was for directional tires and wheels, which rotates front to rear but on the same side of the car; the other is for non-directional tires and wheels which rotates front to rear but in an X pattern. I've never heard of "directional" and "non-directional tires and wheels. Can someone tell me what this means and what kind of tires I have? Thanks in advance.