Here is my situation:
- 2012 Honda Civic EX, 1.8L with P205/55R16 tires recommended
- Three (both front, and left passenger) tires are OEM Continental ContiProContact P205/55R16 89H with about 20,000 mixed highway/city miles, average speeds 20 - 65 MPH
- One (right passenger) tire is a brand new Michelin Primacy MXV4 P205/55R16 89H with about 60 miles on it. I had a local tire shop mount and balance it. I had to get a new tire because the OEM right passenger tire had run over a large bolt, which I had professionally plugged and patched, but the tire would leak air and trigger the TPMS about every 6 - 12 days.
Are there any significant disadvantages to running with tires of different brands, provided that each tire has the exact same dimensions, pressure recommendation, speed rating, etc?
I think the Primacy tire is definitely higher quality: it has much better ratings for road noise, comfort, and durability. But I am unsure if it is a safety, control, performance, or reliability issue to run with tires from different manufacturers, where one tire is different in its tread patterns than the rest (aside from tread patterns and perceived hardness of the rubber, the Primacy tire is essentially the same as the others.)
If someone identifies a real problem with this configuration, I will probably replace my OEM tires with all the same as the Primacy tire before my dealership recommends that I replace my OEM tires due to the treads wearing out. But if this is a fundamentally sound configuration, and the only drawback is that my tires will have different wear levels due to the difference in mileage, then I will run with my current configuration and tolerate the inferior road noise of the OEM tires.