For sure I am not buying the Turanza. Like I within my previous thread I am looking for a summer tire since in Quebec winter tires are mandatory (I have Nokian Hakk R3). Additionally I want a tire that is good on the rain, stick well and not too noisy and if possible rim protector like the turanzas.

People said in previous responses that Michelin does not last long so I was thinking about the Continental DSW 06 or something around 1K$ CAD and below. I fall on the Firestone Firehawk Indy 500 while browsing at possible tire reacement and the reviews are geat and threadwear pretty good and way cheaper (40%). Looks like they want to push the sales of that new tire.

 

I'm no tire expert, but I ran two sets of DWS's on my Z4. They were definitely nicer-riding than the stock runflats, and on the first set I got well over the rated 80,000kms+ out of them. Were very good in all conditions, although we don't typically get heavy snow here and I usually wouldn't drive in it anyway. Considering the IS isn't a convertible, I was immediately astounded at what I perceive to be road noise from the tires in an otherwise quiet car. Certainly more than the soft-top Z4 Contis. I use one set year round, so when the Turanzas are done I'm likely going back to the DWS. As for protection, the previous owner curbed every single rim, so not sure how much that counts for.

 

Hey arentz07, what kind of tread life have you gotten out of the BFGoodrichs?

 

Too early to say, as I have put only about 7,000 miles on the tires. That said, about 1,000 miles ago I checked the inners of the front tires, and they seemed to be better than I would have thought. I really need a tread depth gauge...

 

Oh okay, yeah a gauge is really nice to have. You can see how much the tire wore down so far in the first 7000 miles and can roughly calculate estimated remaining life.

It also lets you see whether certain parts of the tire are wearing faster than others, which may not be easy to spot just eyeballing it until the tire is close to end of life.

 

Yeah, you are giving me a reason to go ahead and order one. It would come in handy to help catch tire wear issues early and gauge exactly how much life is left.

Yeah my last "measurement" was with a quarter. Honestly I couldn't tell a difference between inner and outer tread depth using that method.

 

Do you have the GSF/RCF bushing installed? I can't remember who all has installed them haha.

 

Super handy! You are lucky your tires are wearing evenly!

 

I remember reading that he didn't have any bushings changed.

 

Correct. The only change I've done is slight toe-in at the front, at the recommendation of the dealer service advisor. Maybe it is working. But we'll see when I have actual numbers.

 

I wonder the difference between AWD and RWD in terms of inner tire wear.

 

Very good point, now I'm wondering the same lol.

 

I got my tread depth gauge today and took some measurements. It's an analog gauge, so not very precise, but definitely still precise enough to tell if there's going to be an issue, IMO.

How to interpret: O = outer, M = middle, I = inner
Numbers are 1/32nd-inch.


I had 28,500 miles on the clock and replaced my old tires at roughly 21,500. Factory tread depth is 9/32" on both front and rear tires, so that means there's been about 1.5/32" of wear on average per tire. Granted, I put these tires on in the fall and went through a winter. I expect them to wear a bit faster in the coming warmer months. So, if I round up to 2/32" per 7,000 miles, I'd say these will easily last another 10,000-12,000 miles before they dip below 5/32". That is pretty typical for this car, but the main thing I appreciate is the more even wear. Looks like the alignment change actually helped a lot.

 

Thanks for the update! Your tires seem to be wearing slower than mine. I have the Michelin Pilot Sport AS3+ F sport stock everything. My tires lost 2/32 in 4000 miles. :/

These seem to be wearing faster than avg? I mostly drive normally.

 

I don't know whether it's a significant difference, and even the tire specs listed by the manufacturer could be rounded down. Anything 1/32" or less is immaterial, really.

There are a lot of factors though. Temperature, tire pressure, and road conditions come into play. For what it's worth, I try to keep the tires at least at the factory-recommended 36 PSI. In colder weather, I don't mind if they dip down to 35, but they're at least 36 PSI when the car is garaged. Now that the weather is warming up, my tires will be at 37 PSI when I leave the office. I probably could run a slightly lower pressure if I wanted, but I like the steering response and ride quality trade-off as is.

It also depends on how you drive. I've admittedly been driving more aggressively since I put the new tires on, since it's just more fun now. I think that explains why the rears are more worn than the fronts. Even so, it's a negligible difference.

The PS A/S 3+ have slightly more tread depth and a higher treadwear rating, so I would expect them to last longer overall, everything else being equal. Intuitively, anyway.