Free Alignment from Infiniti
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Joined: Mar 2008
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From: GUAM
Feathering is caused by the toe alingment. If your tires are alinged straight ahead, then you will have feathering when at high speeds. This is caused by the front tires toeing out of eachother. The only way to prevent this from happening is to aling. the front toe more in to eachother. Camber alingment does not cause feathering, just wear on either the outer edge or the inner.
Joined: Oct 2007
Posts: 2,335
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From: Metro Detroit, MI [Sterling Hts.]
For those of you that are not familiar with your Infiniti warranty, you should know that within the first 12,000 miles or 1 year of owning your NEW Infiniti you are able to get a FREE, ONE TIME front/rear aligment from your Infiniti dealer!
Many of you should know that the stock tires have a very low treadwear and will most likely not last as long as some of you might think. A good time to take advantage of your alignment would be around your second oil change. This will be just about the time (if you drive at high speeds) that the inside of your tires will start to wear slightly more than the outside. So please, don't spend the $60+ to get your car aligned when you can get it done for FREE!
Many of you should know that the stock tires have a very low treadwear and will most likely not last as long as some of you might think. A good time to take advantage of your alignment would be around your second oil change. This will be just about the time (if you drive at high speeds) that the inside of your tires will start to wear slightly more than the outside. So please, don't spend the $60+ to get your car aligned when you can get it done for FREE!
Question: is the faster treadwear due solelyto the build of the Bridgestone Potenzas? In other words what I am asking is, does the G37 in terms of its weight, performance, center of gravity, suspension, etc. already leave tires vulnerable to faster wear or is that something associated with the tires themselves exclusively?
The reason I ask this is because byt he time my Bridgestone Potenzas wear out I am hoping we will have better, longer lasting tires on the market to upgrade to.
Last edited by DetroitG37Joe; May 27, 2008 at 01:54 PM.
Joined: Oct 2007
Posts: 2,335
Likes: 1
From: Metro Detroit, MI [Sterling Hts.]
you're saying alignment made your ride worse? how, in what ways? did you have springs or coils in? That's so bizarre...
The Pontenzas have a very low treadwear of 180 which means the rubber is uber soft, good for a quite ride but not for longevity. Look for tires around 380-400 to maximize wear.
http://www.michelinman.ca/benefits/p..._a_s/1035.html
The pilot sport A/S is a 400 tw. check it out on line.
The pilot sport A/S is a 400 tw. check it out on line.
Last edited by shumby; May 28, 2008 at 12:45 AM.
Joined: Oct 2007
Posts: 2,335
Likes: 1
From: Metro Detroit, MI [Sterling Hts.]
ahh the pilot sport A/S looks to be a good way to go!!! 400 treadwear sounds good. Also they are all season so better than our summer tires in the snow I presume?? wil the ride be a bit louder im guessing? Im gonna look for a deal on these closer to when my Potenzas wear out...
EDIT:
I see that our rear size is available on the Michelin size chart but not the front size, Shumby can you verify that? Sounds like you know more about this Pilot A/S tire.
G37 Sport Stock Tire sizes as per tirerack.com
Original Equipment Front Size: 225/45-19
Original Equipment Rear Size: 245/40-19
Also some FYI on Uniformed Tire Quality Grading (UTQG Treadwear Ratings)
Treadwear Grades
UTQG Treadwear Grades are based on actual road use in which the test tire is run in a vehicle convoy along with standardized Course Monitoring Tires. The vehicle repeatedly runs a prescribed 400-mile test loop in West Texas for a total of 7,200 miles. The vehicle can have its alignment set, air pressure checked and tires rotated every 800 miles. The test tire's and the Monitoring Tire's wear are measured during and at the conclusion of the test. The tire manufacturers then assign a Treadwear Grade based on the observed wear rates. The Course Monitoring Tire is assigned a grade and the test tire receives a grade indicating its relative treadwear. A grade of 100 would indicate that the tire tread would last as long as the test tire, 200 would indicate the tread would last twice as long, 300 would indicate three times as long, etc.
The problem with UTQG Treadwear Grades is that they are open to some interpretation on the part of the tire manufacturer because they are assigned after the tire has only experienced a little treadwear as it runs the 7,200 miles. This means that the tire manufacturers need to extrapolate their raw wear data when they are assigning Treadwear Grades, and that their grades can to some extent reflect how conservative or optimistic their marketing department is. Typically, comparing the Treadwear Grades of tire lines within a single brand is somewhat helpful, while attempting to compare the grades between different brands is not as helpful.
EDIT:
I see that our rear size is available on the Michelin size chart but not the front size, Shumby can you verify that? Sounds like you know more about this Pilot A/S tire.
G37 Sport Stock Tire sizes as per tirerack.com
Original Equipment Front Size: 225/45-19
Original Equipment Rear Size: 245/40-19
Also some FYI on Uniformed Tire Quality Grading (UTQG Treadwear Ratings)
Treadwear Grades
UTQG Treadwear Grades are based on actual road use in which the test tire is run in a vehicle convoy along with standardized Course Monitoring Tires. The vehicle repeatedly runs a prescribed 400-mile test loop in West Texas for a total of 7,200 miles. The vehicle can have its alignment set, air pressure checked and tires rotated every 800 miles. The test tire's and the Monitoring Tire's wear are measured during and at the conclusion of the test. The tire manufacturers then assign a Treadwear Grade based on the observed wear rates. The Course Monitoring Tire is assigned a grade and the test tire receives a grade indicating its relative treadwear. A grade of 100 would indicate that the tire tread would last as long as the test tire, 200 would indicate the tread would last twice as long, 300 would indicate three times as long, etc.
The problem with UTQG Treadwear Grades is that they are open to some interpretation on the part of the tire manufacturer because they are assigned after the tire has only experienced a little treadwear as it runs the 7,200 miles. This means that the tire manufacturers need to extrapolate their raw wear data when they are assigning Treadwear Grades, and that their grades can to some extent reflect how conservative or optimistic their marketing department is. Typically, comparing the Treadwear Grades of tire lines within a single brand is somewhat helpful, while attempting to compare the grades between different brands is not as helpful.
Last edited by DetroitG37Joe; May 28, 2008 at 05:55 PM.
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From: MD & NOVA
*BUMP*
Joe, i been lookin into the Pilot sport A/S for awhile now... i wanted to try some of the newer tires that were out like Goodyear Eagle F1 AS, but like u said... finding all seasons in 19's that fit our wheels is hard.
With the pilot sports u gotta plus size to get the right fit:
Front: 245/40/19
Rear: 275/35/19
Joe, i been lookin into the Pilot sport A/S for awhile now... i wanted to try some of the newer tires that were out like Goodyear Eagle F1 AS, but like u said... finding all seasons in 19's that fit our wheels is hard.
With the pilot sports u gotta plus size to get the right fit:
Front: 245/40/19
Rear: 275/35/19
