Hey guys,
I need to replace the rear passenger tire on my car, so I was just thinking about picking up 2 fresh ones. The problem is the ones I have right now are H-rated and the ones I'm about to get are Z-rated. Will this be a problem? Would it be more or less of a problem than running 3 HRs and 1 ZR?

 

It's best when they all match, so get 1 or 2 H-rated tires.

The worst you can do is mis-match across the same axle.