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Problem with low profile tires for 2010 Buick Lacrosse

8 messages,  Last post on May 24, 2011 at 5:44 AM

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What is this discussion about? Buick LaCrosse, Buick, Tires, Sedan

Messages Page 2 of 2

#3 of 8 Re: Problem with low profile tires for 2010 Buick Lacrosse [cooterbfd] by e_net_rider

Jan 22, 2011 (5:38 am)

Replying to: cooterbfd (Jan 21, 2011 6:26 pm)
You are absolutely right about the sidewall.
Also lucky to get road hazard it seems. I talked to one tire dealer trying to shed the GY with only 50 miles and he told me he would not sell me road hazard because of the low profile.
Bubbling over an extended range of time sounds serious. I'd check with a tire dealer. If the sidewall was not bruised by hitting something I'd have an issue. They may have shipped a large batch of bad tires, maybe even knowing. Driving with too much or too little air in the tire can cause separation.

#4 of 8 Re: Problem with low profile tires for 2010 Buick Lacrosse [e_net_rider] by crankeee

Jan 22, 2011 (8:25 am)

Replying to: e_net_rider (Jan 22, 2011 5:38 am)
Good post on problems with GY low profiles. The trend towards bigger rims is great as long as the increase is reasonable and results in larger brake rotors that means better stopping and longer wear IMO. The "looks only" reason leaves us with less sidewall to absorb impacts and protect the expensive alloy rims on most newer cars. I have asked if low profile tires can be replaced with "normal" profile say 60 or even 65 series on the Buick Lacrosse. No answers yet but still searching. Michelin makes Pilot and Primacy series that may have tread wear guarantees and a great brand to back that up. Our 2010 CXL has 18" rims with 235 R50x18" Michelin Pilots.
Felt lucky to get those in lieu of other OEM brands. No idea yet on actual mileage/tread wear with these but the handling is great. also wonder if most of the problems are with 19" rims and resulting lower profile (45's) tires rather than 18" and standard 17" on new Lacrosses. any comments?

#5 of 8 Re: Problem with low profile tires for 2010 Buick Lacrosse [crankeee] by e_net_rider

Jan 22, 2011 (3:32 pm)

Replying to: crankeee (Jan 22, 2011 8:25 am)
Now that I think about it, I may have been trying to locate same diameter by moving from the 245R40x19 to say maybe the 235R45x19 or 235R50x19. I was not able to find an exact comparing revolutions per mile. And as you know these tires are pricey so I'll likely wait until I need to change. Then maybe under someones love'em or leave'm.
As the mileage accumulates it seems the suspension softens, both in Touring and Sport modes. Or maybe it is the tires.
The tires you mentioned are rated fairly high as was the Continental which I think came with free road hazard.
Years ago they came out with the UTOCQ rating but it needs to be improved upon to give better meaning to shoppers.

#6 of 8 Re: Problem with low profile tires for 2010 Buick Lacrosse [e_net_rider] by crankeee

Jan 23, 2011 (11:17 am)

Replying to: e_net_rider (Jan 22, 2011 3:32 pm)
Rider: Good plan to run what you have and wait for alternatives down the road. The major tire makers will address a market if big enough and the 18" and larger rims seem here to stay due to buyers preference. One thing I really like on the Lacrosse are the 12+" rotors al around. Used to call these the Cadillac setup since our old Deville had huge rotors and corresponding larger disc pads. Great wear patterns/mileage and great stopping power. Lacrosse gets good grades for safety, including braking and I bet it is due to those bigger rotors allowed by the bigger rims.
I don't have a problem with 50 series Michelins since we had them on a 300ZX and that car demanded high speed rating WIDE tires for handling. The aftermarket will provide alternatives but at a demanding price as you point out. The old Michelin X was the result of the then expanding market for 60 series tires with better tread wear so in a few years we will see choices IMO. good luck

#7 of 8 Re: Problem with low profile tires for 2010 Buick Lacrosse [crankeee] by e_net_rider

May 22, 2011 (6:42 am)

Replying to: crankeee (Jan 23, 2011 11:17 am)
More on tires. The CXL loaner had the Michelins and according to the TPMS they had a little too much air. When I got mine back the first time the pressure was at 33. I think someone mixed up the fill pressure since the door sticker on the CXL says 33, not 35. And mine calls for 35.
Although a much smoother quieter ride on the Michelins, I thought the handling was quite poor compared to my CXS. Certain aspects of that could certainly be attributed to the hyper-strut and possibly the touring package minus tire differences.
I strongly suspect that some of the slosh, wiggle, you get when driving on highway might disappear if the tires had that extra 2 pounds let out of CXL. When I got mine back the first time a few days ago, they forgot to rotate, or maybe they know something about rotating I had not yet figured. So I asked them to rotate. Yesterday afternoon was the first real testing of handling since. And there is a big change and it does not seem good. I am hoping the tires just have to break-in to new positions. The biggest issue was the difference of how the front and rear handled the road anomalies, one much more than the other. By time the tires have seen all four positions there is no guessing how they will act then.

#8 of 8 Reply: Problem with low profile tires for 2010 Buick Lacrosse [e_net_rider] by crankeee

May 24, 2011 (5:44 am)

Replying to: e_net_rider (May 22, 2011 6:42 am)
too bad about the GY's. I put them in the class with Uniroyal and the other GM OEM brands. Ford and Hyundai caught on to Michelins as amarketing tool and I appreciate it. We got lucky with 2010 CXL and 235x 50 18 Michelins. Great road handling, wet weather and even snow traction. Also matchs the H-arm,stability control and McPherson struts suspension on our car. Just returned from 1400 mile trip. 29.4 MPG one way and 27.8 on return. speed 70-75, some 80 with major grades on route. GREAT!

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