QuestionWe are in a quandary. The Mercedes Dealership is suggesting that we replace the two rear tires(265 35 18 92 Y) on my 2005 E500 because of wear. I was interested in replacing them with a different brand because of cost. I'm looking at Dunlop Sport Maxx 265/35zr18 97y, Perrelli P zero Nero P265/35zr18 93w or Bridgstone Potenza RE960 265/35r18 93w. Would any of these tires drastically effect the handling of my vehicle. Thank you in advance.
AnswerHere is basic overall for these kind of tires.
Speed rating is for:
-Safe performance of tires at standardized speeds.
-The speed rating of a tire indicates the speed category at which the tire can carry a load under specifies service conditions.
What happens when you lower your speed rating is:
-Effects handling.
-Lost of maximum speed.
-Speed odometer not working correct and giving false speeds.
-May effect your car Differentials.
When you lower the speed rating lower then the OEM:
-The handling of the vehicle may be different and the maximum speed capability is limited to the lowest speed
rating.
Here is a tip for speed rated tires.
When replacing two tires, and they are speed rated, they must go on the back for control. If not, you will spin out of control. ( this apply's only to wheels of 4 tires of the same size ).
I have seen many people get raid of there cars after they find out the cost per tire and how often they have to replace them. When I buy a car, the first thing I look at is the tire. ( its a hidden cost ).
Never lower the load rating.
For best results, stay with OEM size, speed and load.
From the few you give me, the Dunlop Sport Maxx sounds ok.
Hope this helps.
Good luck,
John
