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Discussion Starter · #1 ·
I am torn between choices for my Florida GXP. Not being a basher, but from what I read, the OEM's suck. Goodyear Eagle F1 asymetrical. After online chats with tire salesmen I had to read up to be better informed. I started at the roots of my concern of choice. The accidents GXP's have usually are tires not gripping. I've read that the best tires in water relate to tread depth. I used to think tread design swayed my judgement, but apparently I've been misled.
All tire makers test thier tires up to 7200 miles. Ive got 60k on my present tires that now are at the 2/32 cross-bars, meaning they gotta go. I like that Goodyear tripple-tred look. I'm needing some advice as now ready to Buy.
Extra costs are install, stems/valves, and Nitrogen filled (adds 40% life).
I'm torn between:
Contenental Extreme Contact DW 340 aaa 1764 wt $657
Bridgestone Potenza RE970AS Pole Position 400 aaa $745

And then Pricewise:
Nexen N3000 340 aaa 1764 wt $480

I'm just wanting a great tire to avoid accidents, low noise & smooth ride, ect.

Let me know your thoughts, so I can take your suggestions seriously.

Sets should be for all four tires being equal size. (Best)
 

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I can tell you...DO NOT buy from TireRack! Ive had 2 horrible experiences with them. Both times my tiees were old. One set was just over 2 years old and the other set was 3.5 years old!! They made me jump through hoops to try and return them....and after spending $400 on balancings and rotations and mounting and dismounting....I gave up and went to the local Belle Tire...
 

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I have the Conti DWS and love them, so the DW's would be even better for non-cold-weather. The other ones to look at that get rave reviews are the Michelin PSS's, but likely more expensive (?)

I've often ordered from Tire Rack and never had issues, but YMMV. A better choice may be Discount Tire Direct (a forum sponsor).
 

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Extra costs are install, stems/valves, and Nitrogen filled (adds 40% life).
If you pay extra for Nitrogen then you're an idiot. It does NOT add 40% life.

I've been running all weather Michelin Pilot Sport A/S Plus and have found them to be a far better tire than OEM.

Bob
 

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The best wet weather tires are summer tires not all seasons. The sipes (little zig zaggy cuts) in all seasons to give them traction on ice degrade wet weather performance. Since you are in Florida, you don't need all seasons unless you travel into cold weather.

I have bought a number of tires and wheels from Tire Rack and highly recommend them.

Sent from AutoGuide.com App
 

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The best wet weather tires are summer tires not all seasons. The sipes (little zig zaggy cuts) in all seasons to give them traction on ice degrade wet weather performance. Since you are in Florida, you don't need all seasons unless you travel into cold weather.
?? All seasons were not on his shopping list.
 

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I had the Bridgestone Potenza RE01 summer tires did not like them in the rain at all, I have Nitto all seasons from Discount Tires, the 555's and they are great in summer and in rain even if they are an all season. Have no clue how they would be in the snow don't drive the car in snow. The disadvantage of 'summer tires' is at 40 degree's they get hard as rocks. I believe it does some times get that cold in Florida.
 

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The OEM F1s are phenomenal tires, if you like drifting. :lol:

We have the Eagle GTs on my wife's Sky and they do excellent in heavy rain as well as very good warm weather grip.

I have Michelin Pilot Super Sports on my Car. They are excellent warm weather grip, but still provide good heavy rain performance. But you have pay for these, over a grand for a set typically.
 

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I running Falken 612+ for the past couple weeks. So far they have been great. Plus very little road noise.
 

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Discussion Starter · #13 · (Edited)
If you pay extra for Nitrogen then you're an idiot. It does NOT add 40% life.

I've been running all weather Michelin Pilot Sport A/S Plus and have found them to be a far better tire than OEM.

Bob
Only those of us who live in hot temperate hazardous climates will get the 40%. We also have to purge any air out at filling. Not for cold all seasons like you live in.

Air and Nitrogen CANNOT be Mixed!

When tires are inflated with air, over time the pressurized air inside a tire, will slowly escape.
On average, tires compressed air will lose 2.7 pounds of pressure monthly, compared to nitrogen tire loosing 0.7 pounds. The air inside tires expands, when exposed to heat and contracts when cooled. Tires loose more air when exposed to hot weather, compared tires filled with nitrogen, remains twenty percent cooler. Scientifically, nitrogen molecules are bigger than air molecules, thus nitrogen escapes a tire more slowly. According to Ingersol-Rand Company, makes nitrogen inflation systems, nitrogen leaks out of tires about 30 to 40 percent slower, compared to air filled tires. Compressed air contains moisture and oxygen, which can cause oxidation, corrosion, leakage, and accelerated wear in tires. Tires containing nitrogen do not cause any these corrosive problems.

Problems associated having low air pressure in tires, when air escapes. Decreased air pressure on a tire, causes more of the surface of the tire to be exposed to the road, which reduces tread on a tire. Eventually, if the driver is unaware or does not periodically check the tread on a tire, will cause blowout on the road and may lead to a serious car accident. Also, the friction of low tire pressure makes a car engine work harder. Basic rule to follow, when tires operate below twenty percent of optimum safety, will reduce the tire life by up to 50 percent, and tire rolling resistance can add ten percent or more to fuel consumption. Regardless whether air or nitrogen used to inflate tires, tire pressure should be checked once a month and tires rotated every 5,000 miles.

Nitrogen filled tires will not fluctuate as much or be susceptible,
by temperature changes. Tires filled with nitrogen will cause treads on tires to degrade much slower, ride longer, and cost less replacing tires, not as often. When fewer tires need to be replaced, this contributes to helping the environment by minimizing the number of tires for waste disposal and less number of tires, being manufactured, which conserve natural resources. Also, less number of times, need to retread tires, will conserve millions of gallons of oil every day.

The Earth's atmosphere contains about 78 percent nitrogen, which is a colorless, odorless, and tasteless gas. Approximately $10 to fill a tire with nitrogen, over the long term saves money driving longer on a tire, saving money at the gas station having properly inflated tires, and priceless lives saved, driving a safer vehicle. Michelin tire officials recommend nitrogen only for tire used "in a high - risk environment and / or when the user wants to reduce the consequences of a potential abnormal overheating of the tire-wheel assembly," according to company statement. The availability of nitrogen on highway transportation is slowly getting recognized and more manufacturers have entered the marketplace.

Tire efficiency becomes less effective, when nitrogen and air are combined together. A driver may have to refill the vehicle tires with air, when nitrogen is unavailable for purchase. Recommend by manufacturers of nitrogen inflation system, existing nitrogen and air in a tire should be purged, before the proper amount of nitrogen can be added, as soon as possible. Also, drivers will notice if one of the front tires contains both nitrogen and air, will encounter some steering problems, whereby the vehicle may pull to one side, while driving. However, if both front tires are filled with equal amounts of nitrogen and air, shouldn't be any steering problems. Green valve caps are used for nitrogen - filled tires, to distinguish them from oxygen - filled tires.

Available various types of nitrogen tire compressors. Jay Lighter owner of F Tire & Auto Repair in Pompano Beach Florida owns NitroFill, a system for generating and inflating tires with nitrogen. He invested approximately $1 million into development of this system. In 2005, he bought the NitroFill brand from Pneumatech Incorporated, Wisconsin firm. Since May 2006, he sold his equipment to about 100 tire and auto dealers around the nation. Also, NitroFill has a patent pending on the Inflator (name), used to take oxygen out and, put nitrogen into tires. In September 2005, Sunrise Florida Company N2Revolution's, at corporate headquarters (Owner Robin Pearl), launched it's inflation solution PurigeN98 nitrogen (98 percent pure) compressor. Also, Ingersoll Rand is leader in the industry, selling nitrogen compressors for tires. In November 2005, N2Revolution signed an agreement with Crown Auto Dealerships Incorporated, providing nitrogen inflation systems PurigeN98. Nitrogen filled tires will be the standard feature in new cars at their dealerships. The PurigeN98 is being used to inflate tires on vans, cars, recreational, and other vehicles. Also, likely inflate tires on bikes, ATV's, and other types of vehicles using rubber tires. N2Revolution has a patent pending Nitroflator, which generates and dispenses Purigen98, through fully automatic electrical controls and monitoring systems, temperature controlled air supply and a space-saving cylindrical design with blue colors. Additionally has an upgradeable capacity. N2Revolution guarantees the highest level of pure nitrogen (98 percent).

Nitrogen molecules are larger than regular air molecules, so tires deflate more slowly.
Nearly 5% of brand new tires come rom the factory with a manufacturing defect that makes
them nearly impossible to balance using any system. Nitrogen Tire Fill and Ride-On TPS Tire Sealant:
http://www.ride-on.com/images/stories/pdf/Ride-On-and-Nitrogen-TSB-120308.pdf

So,...If tires are hermetically sealed (valve stems included) they may not leak at all.
I recommend you train yourself to constantly maintain your tire pressure as a Habit!

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Bills86e
 

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I have goodyear eagle RSA on mine and they grip fairly well in wet or dry. However, if I'm accellerating in 2nd or 3rd in the rain, they will break loose and the rear will slide in a turn if I gas it too much. I've heard decent things about tire rack and I know a guy that gets a wholsale discount and can give me free shipping too. I have something else on the 06 and they pretty much suck in the rain. I'll advise tomorrow.
 

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For Bills86E:

From Should You Fill Your Car's Tires With Nitrogen?

In conclusion:
Is Nitrogen Worth It?
The air we breathe is made up of 78 percent nitrogen, 21 percent oxygen and a few other elements. To get the desired benefits for tires, nitrogen needs to be at least 93 percent pure, according to nitrogen service equipment providers quoted on Tirerack.com. So we're basically talking about adding an extra 15 percent of nitrogen and getting rid of as much oxygen as possible.

Based on cost, convenience and actual performance benefit, we don't think nitrogen is worth it. A much better use of your money would be to buy a good tire-pressure gauge and check your tires frequently. This is a good idea even if you have a tire-pressure monitoring system in your vehicle. The warning lights aren't required to come on until you have less than 25 percent of the recommended tire pressure. Having the correct tire pressure will get you many of the benefits of using nitrogen and will ensure that your tires last longer.
 

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When I purchase the GXP new from my dealer in South Florida he inflated the tires at no charge using the system Bills86E posted above.
I can tell you that in less than 2 moths the tires had already lost the nitrogen at a higher % than advertise.
Have never use the service after that initial time.
 

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Racers use nitrogen as an easy, cheap way to fill the tires without moisture. The moisture in air causes tire pressures to fluctuate and in unpredictable ways given that air humidity varies. At pressure, it can also condense in a tire. These are only issues if you are going about 200 mph. Otherwise air is fine. Air is mostly nitrogen with some oxygen. It will not affect tire life in any way. It does make tire stores richer if that's what you want to do.

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So what do you do if the nitrogen is installed at no extra charge like at the local Costco store?

Tire Rack Michelin Pilot Sport A/S Plus $840.00 + Shipping + Installation + + +

Costco Michelin Pilot Sport A/S Plus 245/45ZR 18 96Y $825.96 mounted, balanced, road hazard, lifetime balancing and rotation, flat tire repair, old tire disposal, free nitrogen
 

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Don't worry...be happy!
 

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Back to the nitrogen topic:
My wife and I went out car shopping and Nissan is charging $598 in the sticker for their so called Nitrogen package.
 
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