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Old 07-21-2010, 03:21 PM   #1
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Towing with P-Metric tires on F150?

My 2010 F150 came with Michelin P255/65R17 (35PSI/2000lb rated) tires. They are great, silky smooth tires but they are standard passenger tires, not light truck tires. They did fine towing my Sovereign during the 4th of July weekend but I still feel uneasy towing with these tires. Does anybody else tow with a similar tire and what kind of performance do you get? I'm also curious what other F150 owners have on their truck.

I'm thinking about upgrading to Michelin LT M/S tires (44PSI or 51PSI) but before I pay the big bucks I want to know if it's needed.

Thanks in advance.
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Old 07-21-2010, 04:21 PM   #2
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If you can derate them by 15% and still have them be above your scale weight you should do ok.
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Old 07-21-2010, 04:25 PM   #3
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Thanks, Jammer.

I forgot to mention that these tires came from the dealership inflated to 40PSI. I'm told that's standard practice with these tires for towing.
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Old 07-21-2010, 04:54 PM   #4
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I think you will feel a lot of side shift when trucks are passing and in high cross winds. I would change to a LT tire. Auto makers put cheap crappy tires on their new cars and trucks anyway and they don't last long if you work them very hard.

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Old 07-22-2010, 07:00 PM   #5
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Does the owner's manual talk about what kind of tires the truck should have?
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Old 07-22-2010, 07:32 PM   #6
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Quote:
Originally Posted by mello mike View Post

I'm thinking about upgrading to Michelin LT M/S tires (44PSI or 51PSI) but before I pay the big bucks I want to know if it's needed.

Thanks in advance.
Mike,

am perfectly content with the factory equipped BF Goodrich Rugged Trail T/A, P275/95R18

on a 2008 F150 4x4 Supercab.


have towed the 2002 Safari 25C, the 1981 31' Excella, and the 1976 31' Sovereign, all with no problem or issue.


imho, you don't need to spend the money....



best,
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Old 07-22-2010, 07:43 PM   #7
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jm'

check those tire size parameters again...



and the rugged trail t/a is an LT tire...

that comes in a variety of load/inflation ratings from 35 psi to 80 psi.

so is your point that something OTHER than mich' in LT is a good choice?

or that E rated tires aren't required?

the oem tires on my last 250 were the same (bfg rugged trail t/a) and lasted ~50, 000 miles all towing.

i agree they are a reliable solid performer even as a oem tire.

the E rating helps if towing larger heavy trailers and carrying a full payload,

but clearly aren't required for lighter weight setups.

cheers
2air'
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Old 07-22-2010, 08:25 PM   #8
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Mike,
My 2010 F150 supercrew, 6.5' box, max trlr pkg. also had P tires - 275/65R18 Goodyears, Wrangler I think. Had a flat w/ less than 5,000 miles - no big deal.
We pulled the 30' Classic w/slide to Newfoundland in May & June. Ruined a tire on a gravel entrance road to a campground. This was a well traveled road. That was all I needed to make me replace them w/ Michelin LT. More plies are tougher tires. For my peace of mind the LTs were worth it. I drive on gravel roads around the farm all the time (Not w/ this truck !!!) I know how I want tires to perform - the P tires weren't for me, rock road or highway!! Its hard to tell but the LTs @ 80 psi didn't seem to ride much, if any, worse than OEM crap.
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Old 07-22-2010, 09:55 PM   #9
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Thanks Dan. Do you have 4x4 with 3.73 gears? Do you keep your tires inflated at 80PSI? My truck has only a 4x2 with 3.55 gears. I'd love to go with Load Range E but I'm not sure if the OEM alloy wheels can handle 80PSI. Where can I find that out? Tried looking on the rim but didn't see any PSI ratings anywhere.

It's apparent that these P-Metric 35PSI tires aren't going to cut it. Here's my door sticker and I only have 1680lbs of payload. Tongue weight of my Sovereign is about 600lb and I carry 50 gallons of water. That's 1000 lbs already and I haven't even gotten to passengers, generators, and other camping stuff like my inflatable boat.

I'm looking at P-Metric 265s which provide an extra 500lbs capacity per tire at 44PSI. BFG has 265s at 50PSI. The LR-E tires do intrigue me.

Just not sure which way to go?
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Old 07-22-2010, 10:43 PM   #10
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I had three flats in 5 weeks with P rated tires, all on pavement. Changed to LT tires, the same brand, and have had 2 flats in 16 years, with a lot of gravel and rock roads.
In my opinion P rated tires are for city drivers who will never see a pebble on the road.
Sam
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Old 07-23-2010, 06:28 AM   #11
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Quote:
Originally Posted by jm2 View Post
Mike,

am perfectly content with the factory equipped BF Goodrich Rugged Trail T/A, P275/95R18 on a 2008 F150 4x4 Supercab. Have towed the 2002 Safari 25C, the 1981 31' Excella, and the 1976 31' Sovereign, all with no problem or issue. imho, you don't need to spend the money....

best,
Thanks, Joseph. But your tires have more beef than mine. I couldn't find a perfect match for your size but what I did find was 44PSI at a max payload of 2700lbs. At the very least I'm looking at a similar tire my truck. Do you have 3.73 gears on your truck?

Marvin, yeah. I already do a little.

Aage, no nothing. Just general tire info. Tire specifics are on the door only.

Samb, thanks for your post. What tires are on your truck? BTW, love the dinette/dash. Is your battery box holding up ok with the extra weight?
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Old 07-23-2010, 06:30 AM   #12
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I am running 275/55/R20 Scorpions on my 2009. These are the factory tires with a max load of 2040# each at 44psi. When towing our 34' which has an 820# tongue weight, I am within about 100# of my limit. They have been fine so far, but when I replace them at wear-out, it will be with a higher capacity tire. I have factory aluminium rims, and like Mellow Mike am not sure where to find the pressure capacity for the rim. It would be a waste of $ to buy a higher weight capacity tire if I exceed the rim capacity.
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Old 07-23-2010, 06:37 AM   #13
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Quote:
Originally Posted by Aviator View Post
I am running 275/55/R20 Scorpions on my 2009. These are the factory tires with a max load of 2040# each at 44psi. When towing our 34' which has an 820# tongue weight, I am within about 100# of my limit. They have been fine so far, but when I replace them at wear-out, it will be with a higher capacity tire. I have factory aluminium rims, and like Mellow Mike am not sure where to find the pressure capacity for the rim. It would be a waste of $ to buy a higher weight capacity tire if I exceed the rim capacity.
Craig,
What is the max payload for those tires as stated on your door sticker?
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Old 07-23-2010, 06:41 AM   #14
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I use P225/70/15 XL on my e150 van pulling the TT and i have them set to 41psi. the do just fine. Max load is 2280.
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