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Discussion Starter · #1 ·
The wife's XC90 V8 is eating the front shoulders of her OEM Michelin's. Even though the alignment is perfect, and I keep pressures at 36 psi, she just polishes them. At just 11,700 miles they are nearly treadless on the outside edges... The center tread is perfect, and the inside tread looks just great. Something had to be done...<p>So, today I had the tires removed from the wheels and remounted "inside out" at a shop. <p>The first shop I visited refused to do it. They wanted me to purchase new tires instead - claiming some sort of BS about tread separation, vibration, yadda, yadda, etc... I attempted to explain to the uninformed owner that my tires would still be rotating in the same direction, and that for all practical purposes the tires wouldn't feel a difference... but he was thick, so I left.<p>The second shop did a perfect job for only $60 out the door. (Before I dropped it off, I marked each with a red grease pencil indicating rotation direction and "inside" so they wouldn't be confused.)<p>So, my $60 should buy me another 5,000 miles on these things. With replacement costs from $600 - $900, the $60 is a great investment to extend tire life by another ~30%! I'll keep you posted.<br>
 

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Re: Drastic tire wear requires drastic measures... (Emission)

Good for you,<br>But try another alignment facility. The symptoms that you have described indicate misalignment (so called toe-in, forgive my ignorance, if I use the wrong term).
 

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Discussion Starter · #3 ·
Re: Drastic tire wear requires drastic measures... (Volvo6850)

"Toe" is the correct term, but I don't think the alignment is off. There is no cupping whatsoever, and no abnormal wear in the centers. In all honesty, it is the FWD geometry on a 2+ ton SUV that is doing it. Apparently expected.<p>Jokingly, I asked the dealer yesterday if he could give me 5 degrees of negative camber on the fronts. He laughed.
 

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Re: Drastic tire wear requires drastic measures... (Emission)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Emission</b> »</i></TD></TR><TR><TD CLASS="quote">"Toe" is the correct term, but I don't think the alignment is off. There is no cupping whatsoever, and no abnormal wear in the centers. In all honesty, it is the FWD geometry on a 2+ ton SUV that is doing it. Apparently expected.</TD></TR></TABLE><p>Wouldn't this be indicative of a camber issues? It sounds like the tire is leaning too far on the outer shoulder. But then again, you would see a progressive wear pattern across the tire with the inner shoulder looking a lot better than the middle, etc.
 

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Discussion Starter · #5 ·
Re: Drastic tire wear requires drastic measures... (MagoonR)

Yes, positive camber could also make the outsides wear much faster, but it would be pretty obvious if it were that bad (my other car has a couple degrees of negative camber - deliberate - in the rear, and it is very obvious from just standing back and looking). <p>I'd suspect too much toe, but then again I'd expect other signs of abnormal wear. I need to learn how to post a pic here. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0"> <p>
 

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Re: Drastic tire wear requires drastic measures... (Emission)

What you describe sounds like the exact same problem we had on the Mrs.' '03 XC90 T6. No number of trips to the dealer or alignments solved the problem.<p>We now have a '05 V8 and after nearly 13,000 miles the tires are in great condition - no abnormal wear at all. I don't know what changed between the two vehicles in our case. Perhaps we had some bent suspension bits. Who knows.<p>Either way, try to get the regional rep to look at it as I bet he/she has seen this a time or two before.
 

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Discussion Starter · #7 ·
Re: Drastic tire wear requires drastic measures... (rollie)

Really? That is great news.<p>The dealer just did a 4-wheel alignment yesterday. I will see how the "new" tires wear and then decide if I need to get the rep involved. Maybe the factory alignment sucked?
 

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Re: Drastic tire wear requires drastic measures... (Emission)

It's not that the factory alignment sucked, but my wife managed to kill right rear tire hitting the curb and getting the wheel out of alignment. I did not notice till it was too late.<p>I have a theory that some significant portion of the perceived "tire problem" with XC90 has something to do with people moving from smaller vehicles to the SUV.<br>In the past, I have had hard time adjusting to the long bed, extended cab F150, and I was hitting curbs with my rear wheel "left and right". Luckily, it was solid axel, not a sophisticated independent suspension of XC90.<br>
 

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Re: Drastic tire wear requires drastic measures... (Emission)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Emission</b> »</i></TD></TR><TR><TD CLASS="quote">The wife's XC90 V8 is eating the front shoulders of her OEM Michelin's. Even though the alignment is perfect, and I keep pressures at 36 psi, she just polishes them. At just 11,700 miles they are nearly treadless on the outside edges... </TD></TR></TABLE><p>I have the same tire - 25,000 miles - and they look like they will go another 10-15k. Mostly urban driving.<p>Any tire (except the ultra performance ones) should last 25-40k miles. There <B>is</B> something wrong. Try another Volvo dealer.
 

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Discussion Starter · #10 ·
Re: Drastic tire wear requires drastic measures... (doug b)

<br><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>doug b</b> »</i></TD></TR><TR><TD CLASS="quote"><p>I have the same tire - 25,000 miles - and they look like they will go another 10-15k. Mostly urban driving.<p>Any tire (except the ultra performance ones) should last 25-40k miles. There <B>is</B> something wrong. Try another Volvo dealer.</TD></TR></TABLE><p> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/sly.gif" BORDER="0"> <p>Before the XC90, we had an X5. The OEM Michelins lasted 40K+ on my wife's "identical" driving style. Nothing changed except the vehicle. I am super anal about tire pressures, and I even rotated the Michelins on the XC90 <B>three</B> times over the past 11,700 miles! <p>Let me take pics, and then visit my dealer. <p>You guys are a big help!<p>
 

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We are on our second XC90, the 2003 went 35k on OEM synchrones (low for us)<p>The current version came with the Pirelli's.... Tires were replaced for free by pirelli for premature wear/cupping at 12 thousand miles.<br> I was leary of a suspension/alignment issue but dealer suggested it happened all the time on the pirelli. 8 thousand miles later rear tires are cupped again and one is almost down to the wear bars. Volvo is meeting me halfway on another set if pirelli (different model than the Scorpians) which is reasonably fair, but I am deeply troubled that the car only has 21k on it and already getting another set of tires. I am having it noted in the file that I am concerned it being a car issue rather than a tire problem but they insist this happens all the time with the scorps....we shall see.<p>otherwise loved both cars...and very happy with the dealer working with me on the problem.
 

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Re: Drastic tire wear requires drastic measures... (Emission)

Our 05 V8 did the same thing with the side walls at 12K miles, it was aligned twice with still that issue happening in 1 year. Our 06 does not have enough miles on it yet to see if the issue is the same or not.
 

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had the EXACT same issues on my 04 with 25k miles. Replaced the tires and put the dealer on notice that if these tires wear like the others did, I'm gonna make them responsible since when I put the tires on, I took the XC back to the dealer to do the alignment.<p>I get better wear on my freakin Element.
 

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Discussion Starter · #14 ·
Re: (Big D)

Finally, some pics...<p><IMG SRC="http://www.schnellauto.com/images/Front_Tire.jpg" BORDER="0"><p><IMG SRC="http://www.schnellauto.com/images/Shoulder.jpg" BORDER="0"><p>Remember, these were re-mounted, so the wear was on the outside.<p>Only 11,700 miles!!!
 

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Where did you have the car aligned? At the dealer?<p>If so, I would have shown those to the dealer and asked what was going on? That is a pretty drastic difference. <p>Also, I honestly would have bought new tires. Those insides are pretty worn.
 

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Re: (Emission)

The reason for the wear is your wife thinks she is still driving her X5 <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/tongue.gif" BORDER="0"> <p>We got just about 20K from the Michelins and are now running the Geolanders.
 

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Re: (Emission)

Our outer treads were just like yours at 12k miles for our 05.<p>Our 06 is now cuping the front edges just like the 05 had. Oh well.
 
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