2 days ago I had 2 new tyres fitted on the front while it was in for a service. I use Pilot Sport 3 255 40 R18 ZR 92Y. This is the tyres I asked for, they quoted me for and I thought was fitted. Anyway I just noticed that they have fitted Pilot Sport 3 255 40 R18 ZR 92W. So they fitted 92W instead of 92Y. Anyway I now have 2 Y's on the back and 2 x W's on the front.
Do you think I should take it back and ask for them to be swapped? What is the difference between the 2? Oddly if I look on Michelin's website I do not see ZR 92W's, only ZR 92Y's...