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Old 01-26-2015, 11:20 PM   #1
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New tires for 2015?

Hi, today I went to my local Ford dealer. The same one where I bought my 2014 F-150. I wanted an up close look at the new 2015 Aluminum F-150. At first, I couldn't find one, but I found one, only one hidden in their back lot. Must be already sold. Driving by the dealer, but un-able to stop, I have seen some 2015 F-150's out front, but they must be selling well because those are all gone. Anyway, I was looking at this truck, all of it, and noticed something strange about the tires on it. These tires show the size, but they don't say "P" or "LT" on them. So what are they? Did they decide to not mark tires on pick-ups as "P" passenger type tires?
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Old 01-26-2015, 11:26 PM   #2
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M+S tires: M+S, or M&S: Mud and Snow; A tire that meets the Rubber Manufacturers Association (RMA) and Rubber Association of Canada (RAC) all-season tire definition.[17] These are winter tires, with self-cleaning tread and average traction in muddy or very snowy conditions, and for low temperatures. Spike tires have an additional letter, "E" (M+SE).

Just another classification of tires.
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Old 01-27-2015, 03:22 AM   #3
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ROBERTSUNRUS, these appear to be the tires in your photo:

http://www.tirerack.com/tires/tires....omCompare1=yes

While the "SL" indicates that this is a "standard load" passenger car tire, the 51 psi max pressure is higher than usual. However, the maximum load rating of 2,679 pounds certainly seems adequate for a pickup.

Partial description extracted from TireRack.com:

"The Wrangler Fortitude HT is Goodyear’s premium Highway All-Season tire developed for pickup truck, crossover and sport utility vehicle drivers with long to-do and want-to-do lists. Already earning on-road fitments as Original Equipment on popular 2015 model-year light trucks, Wrangler Fortitude HT tires are designed to blend ride comfort and long wear with all-season traction in dry, wet and wintry driving conditions, even in light snow.

"Wrangler Fortitude HT tires feature Goodyear’s innovative lower rolling resistance tread compound to enhance vehicle fuel efficiency."
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Old 01-27-2015, 05:54 AM   #4
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OMG.....GYM's for TV's.

Unlace 'em and replace 'em.

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Old 01-27-2015, 08:20 AM   #5
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Those would be Euro Metric tires.

http://www.tirerack.com/tires/tirete....jsp?techid=24
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Old 01-27-2015, 10:51 AM   #6
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Actually it's becoming norm to put those stupid Goodyear Wranglers on trucks, P metric or passenger rated tires. It provides a smoother ride. Most folks who buy 1/2 tons are not serious like someone who posts on a forum asking for questions. By that, I just mean that you're probably already ahead of the average truck buyer.

My Ram 1500 came with brand spanking new Good Wrangler SR-A's 275/60/20's they are P metric. The reviews online are not encouraging, they're soft and mushy. The ride however is very smooth. Heavier load range E tires would provide a harsher ride.

They haven't been terrible while towing, but I don't like them all that much in the rain even when not towing. I'll probably replace mine at some point.

Those with a 17 inch rim, are in luck and can easily switch to a Load Range D or E tire.

I can only get a load range E in my tire size by buying an A/T tire or going up one tire size to 275/65/20.

Ugh.
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Old 01-27-2015, 10:58 AM   #7
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5300lbs payload on those tires greatly exceeds the rear and front GAWR of an F150 even with HD Payload Pkg. I'd use them until they wore out.

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Old 01-27-2015, 12:11 PM   #8
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Speaking of tires and wheels I was thinking of keeping my 15" rims but still go with a LT tire. I believe Michelin makes such a tire. What would be the pros and cons of doing this?
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Old 01-27-2015, 12:27 PM   #9
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Originally Posted by graysailor View Post
Speaking of tires and wheels I was thinking of keeping my 15" rims but still go with a LT tire. I believe Michelin makes such a tire. What would be the pros and cons of doing this?
Your trailer weight would exceed maximum with 15 inch Michelin LTXs. These tires are rated 2150 lbs at 50 psi. Derating by 10% for trailer use would reset their rating to 1935 lbs each for a total of 7740 lbs.

GVWR on a 30 foot Flying Cloud is >8000 lbs, you would need to upsize to 16 inch if you want to go to LTX tires.
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Old 01-27-2015, 12:48 PM   #10
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Quote:
Originally Posted by graysailor View Post
Speaking of tires and wheels I was thinking of keeping my 15" rims but still go with a LT tire. I believe Michelin makes such a tire. What would be the pros and cons of doing this?
There are many threads on this question you posed.
The 15" Michelin LTX M/S2 is a "P" 235/75/15. Not enough tire for you in my opinion.

Here are two 15" options that would work.

http://www.tirerack.com/tires/tires....omCompare1=yes

Nokian Rotiiva AT LT235/75/15
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Old 01-27-2015, 02:04 PM   #11
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Even back in '07, our new Tundra came with Goodrich P tires, Load Range C. I never looked until I had the truck for a while and was surprised to see passenger tires. I should have looked because maybe I could have bargained for LT's. They were crappy tires that wore fast. I replaced them with Michelin LTX Load Range E tires—they rode better and lasted 70,000 miles.

I think they have found a way to not have the "P" on the tire so they can fool people into believing it is a real truck tire. I thought there were federal regulations about the markings so I'm wondering how they got around that.

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Old 01-27-2015, 03:16 PM   #12
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Michelin also has non-P tires

I just bought new tires for my TV. 275/55R20 size. While shopping, I noticed that Michelin offers two versions of LTX M/S2 in this size. One is P275/55R20 111T. The other has no P: 275/55R20 113H. The local tire store said what was also said earlier in this thread: The non-P tire is a "Euro Metric" spec tire.

The other interesting thing about Michelin is their web site does not abide by the defined load ratings such as 111 and 113. According to DiscountTire.com, 111 load index equals 2403 pounds load rating, but Michelin lists the max load as 2185. For 113 (2535 rating), Michelin says 2304 pounds. So it looks like Michelin is doing the "derating" calculation.
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Old 01-27-2015, 03:21 PM   #13
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The other interesting thing about Michelin is their web site does not abide by the defined load ratings such as 111 and 113. According to DiscountTire.com, 111 load index equals 2403 pounds load rating, but Michelin lists the max load as 2185. For 113 (2535 rating), Michelin says 2304 pounds. So it looks like Michelin is doing the "derating" calculation.
The "P" designation is used by the TRA organization. The "P" is not used by the ETRTO organization.

The two organizations use different load index calculations.

Tire code - Wikipedia, the free encyclopedia

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Old 01-27-2015, 04:09 PM   #14
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