Originally Posted by Dabo
Hey guys, I have a 2008 QP Sport GT auto and I just had to replace my rear tires after about 10,000 miles. The fronts have the same amount of miles but didn't need replacing.
The fronts still have about 65 or 70% of the tread left, but each rear tire had about 45% tread remaining on the outside half and about 5% left on the inside half.
I do NOT spin the tires, so it's not abuse that's resulted in the strange wear pattern. Is this normal on the QP? Perhaps a result of some very aggressive camber settings that Maserati uses? Or is this a sign that the car needs a rear alignment?
Thanks! Tom in NH
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If you were able to get 10K on your rear tires, then you're doing well.
I also would say that the uneven wear pattern is typical of the QP in it's recommended setup. There are ways of adjusting the camber/tow to lessen the effect but I would stick with your current setup if you are getting that kind of mileage and your are happy with the handling.
Your front tires will get far more mileage. That, also, is normal. All of my friends with these cars state "my fronts never wear out!" I have experienced the same.
My rear tires get about 5,000 miles until replacement is necessary and my fronts about 12k-15k. I drive mine aggressively so this wear rate is expected.
Some points to keep in mind:
1. High performance tires typcally have a treadwear rating of 220-300. Goodyear makes a 285 35 R 19 that has a treadwear rating of 500! Definitely a help on the QP.
2. If you decide to get an alignment, be sure to have the work done PRIOR TO LIFTING THE CAR FROM THE FRAME. In other words, if you get new tires installed then drive directly over to the hunter rack for an alignment, your alignment parameters will not stick and you will quickly burn through your new set. This is because your car takes a few days/100 miles or so to settle to its typical ride height. During that time, your alignment will slowly drift out of spec slightly, often enough to affect tire wear.
So, if you get the alignment work, be sure to DO IT FIRST, then get the tires installed. This is a good rule of thumb for any car but I have seen the effects especially on the Porsches and Maseratis I have owned.