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Not real happy that GM doesn't recommend driving on the factory tires at temps below 30* as they might crack !Did they forget about us guys in colder climates? And yes,I refuse to let it sit until spring!
 

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Good luck.... on that
 

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If you drive it fast enough they will warm up and be hot haha :)
 

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Almost every tire manufacturer who makes ultra-high performance tires recommends not using them in cold weather. I see in the owners manual where it warns about decreased performance below 40F and recommending winter tires for frequent driving below that temp, or on ice and snow. Not a word about cracking below 30F. I'm not sure why you would expect a high-performance sports car to come with all-season or winter tires. That would cripple handling in normal weather. Neither c5s or C6s came with all-weather tires either.
 

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Not real happy that GM doesn't recommend driving on the factory tires at temps below 30* as they might crack !Did they forget about us guys in colder climates? And yes,I refuse to let it sit until spring!
Did you get the 30 degree temperature from your dealer, Michelin, or where please?
 

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I had high performance tires on my Camaro and drove it all winter long in Pa with the exception of ice and snow. Had no issues other than driving slow until they warmed up which didn't take long. I plan on driving my c7 the same way.
 

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I had high performance tires on my Camaro and drove it all winter long in Pa with the exception of ice and snow. Had no issues other than driving slow until they warmed up which didn't take long. I plan on driving my c7 the same way.
Each to their own, I would not drive my C7 with the OEM tires in 35 or less degree (ambient high) temps. I find that when you do the tires have far less traction and adhesion than you are use to or need in an emergency.
 

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Not real happy that GM doesn't recommend driving on the factory tires at temps below 30* as they might crack !Did they forget about us guys in colder climates? And yes,I refuse to let it sit until spring!
When I read a post like this I can only think how fortunate I am to live in Texas. I predict only 3 to 4 days this winter I will not be able to drive our new baby. If I had to buy new tires the first day I got my new corvette I would not be happy. :mad:
 

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The car will tell if the tires are to cold to run when you start it.. My salesman said the same thing. Bring it down to Cape Coral Fl. I will be there Jan, Feb, March, and I will keep the tires warn for you this winter.:cool:
 

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Discussion Starter #10
No comparison in my opinion between the tires on my 13 and the tires on the 14 .Of course I am an old man,and have driven a 70 Corvette up to a 13 Corvette and many sports cars in between as my DD.
 

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One thing to consider is if you have a wreck while using tires below their recommended temperatures you have opened the door to be being responsible no matter what. Additionally your car insurance might not cover it if you are clearly ignoring warnings in the owner's manual.
 

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The official GM bulletin says reduced trasction below 40F, Operating the car below 20F may damage the tires, and they show pictures of cracks. I got this bulletin from a GM service manager so it is the real deal. Its a PDF, I'll email it to you if you want.
 

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The official GM bulletin says reduced trasction below 40F, Operating the car below 20F may damage the tires, and they show pictures of cracks. I got this bulletin from a GM service manager so it is the real deal. Its a PDF, I'll email it to you if you want.
Please attach this pdf document here so we can all see it. The only thing that's been posted here and elsewhere is the Camaro / Goodyear document and while there are similarities it doesn't apply to a Corvette / Michelin equipped car.
 

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Here's the document and it looks like GM has updated it to include all their vehicles that are being shipped with Summer Only tires. Thanks Joe!

NOTE: This applies to ALL C7's, not just Z51's.

tire_cracks.jpg tire_cracks2.jpg tire_cracks3.jpg tire_cracks4.jpg
 

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Although I didn't see where the bulletin mentions this, I have read more than once that STORING the tires at lower than 20F can cause cracking, especially if the tires are disturbed in any way, including adjusting inflation pressure or warming them up too fast. I'm glad to see GM is better documenting this issue.
 

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Although I didn't see where the bulletin mentions this, I have read more than once that STORING the tires at lower than 20F can cause cracking, especially if the tires are disturbed in any way, including adjusting inflation pressure or warming them up too fast. I'm glad to see GM is better documenting this issue.
Perhaps the last page in the bulletin, in the post above yours, is the info you are looking for.


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