How often should these tires be rotated and what order should they be rotated since they are directional. Also they see almost entirely highway miles. No off-road at all and some city driveing. They are 35x12.5R20 Procomp Extreme All Terrains.

 

I rotate my BFG's every 6000 miles. Since they are directional I guess you will just have to swap the fronts straight back to the rear.

 

6,000 here- back to front and balance

 

Radial tires should only be rotated front to back anyway.

 

says who?

I've never heard that before


.. Generally every other oil change is what i recommend. (6000 miles)

 

I didn’t think the extreme all terrains were directional, does it have an arrow on the sidewall with rotation on it?

gtrider- it says in the manual and everyone I have ever talked to says that you rotate all the tires, not just back to front for radials.

 

It was believed back in the 70's that radials should always turn in one direction or they would seperate.

 

Yep- <ROTATION on the tire sidewall

Yea.. I thought you went FBSS (front, back, side, side) for non directional tires to get the best wear out of them. That is one inherent drawback for a directional tire on the highway vs. non-directional.