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tire pressures


gabruby

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Lincoln recommends a cold tire pressure of 33lbs. in all the tires.  I carry 36lbs.  Was wondering what you folks carry in yours.  I feel that the higher tire pressure gives you better wear on your tires and better gas mileage.  Your thoughts, please.  Thanks

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Lincoln recommends a cold tire pressure of 33lbs. in all the tires.  I carry 36lbs.  Was wondering what you folks carry in yours.  I feel that the higher tire pressure gives you better wear on your tires and better gas mileage.  Your thoughts, please.  Thanks

 

Agree, I always kept mine at 35lbs, set before leaving the garage in the AM.

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When the 18" Michelin tires were new-20K miles, I was running ~ 36# cold. At 23K miles, I lowered the pressure slightly to ~ 33# to mitigate a noticeable rougher ride from the lessened tread depth, now at ~ 6/32 remaining on all four tires. Tread wear has been so uniform that I haven't felt the necessity to bother rotating the tires. There isn't the slightest evidence of a need for balancing either...very surprising considering my experiences with other tires/vehicles over the years. So, with the MKX, I'm in a "don't fix it if it ain't broke" mode.

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I feel it's best to run at the pressure the engineers determined to provide the best ride and least wear. Running high as you are, makes the car more prone to wander on the highway (constant correction) and will wear the tires unevenly (center wears more then the outside edges). Also more prone to sliding on a wet surface as not as much tread on road surface as designed for. Design pressures were derived based on weight of the car plus live and dead loads. If your running heavier, then it's OK to add pressure to compensate for the extra load. 

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I feel it's best to run at the pressure the engineers determined to provide the best ride and least wear. Running high as you are, makes the car more prone to wander on the highway (constant correction) and will wear the tires unevenly (center wears more then the outside edges). Also more prone to sliding on a wet surface as not as much tread on road surface as designed for. Design pressures were derived based on weight of the car plus live and dead loads. If your running heavier, then it's OK to add pressure to compensate for the extra load. 

 

2-3 psi will not cause any issues - you'd have to go a lot higher before you start having issues like that.

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I've read that it become's a real problem when your 6 psi over. The chances of blowing a tire when hitting a chuck hole is very real. 2-3 psi, perhaps not so much, but there's no real advantage; except for steering response, cornering (high speed stuff) and off-road. Not exactly a Lincoln's fortay. Still best to maintain manufacturer's rating for general street stuff. No legitimate auto-related website will recommend driving a street car with over-inflated tires.

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  • 1 month later...

I have the 21" wheels and have the pressure set at 35 lbs cold, so after warming up, they show between 37 and 38 lbs. I know there have been a lot of comments about this size tire riding stiff, but I keep mine set in the Comfort Mode and it rides great in my opinion. I had the 22" option on my 2016, which did not have adaptive suspension, and it was slightly more noticeable, but still not uncomfortable at all.

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As mentioned above in a June post, the OEM Michelin LTX tires have become suddenly noisy (rumbling/thrum) on most pavement surfaces and offering a noticeably less comfortable ride, jarring over pavement cracks, etc.

 

With only ~ 23K miles on the Michelins, I will be soon be replacing the OEM tires because I detest the rough/noisy ride on an otherwise superb vehicle. I have considered the Bridgestone Dueler H/L Alenza Plus and others as replacement rubber. Living in a moderate climate, a tire for snow & ice is not a paramount consideration, but an all-season touring tire (including wet pavement capability) offering good handling and a quite, comfortable ride is what I'm seeking. Any recommendations based on personal experience?

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I can't speak from personal experience but have found the information on tirerack.com helpful to select winter tires for my last two vehicles. I compared notes on the different brands tested and selected a tire that best fitted my needs as per the road conditions I would be driving in, traction, braking in wet/dry conditions, road noise & tread life. I've been happy with both choices.   

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tirerack.com survey results are the go-to source.   Just make sure there are enough miles driven and enough individuals providing feedback.

 

Also understand that some tires have different versions produced for different OEMs and they can be drastically different even with the same model name.

 

Michelin MXM4 was used as an OEM tire by 3 different mfrs and they were all different.

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I had the same problems with Michelins. Apparently they use a "soft" rubber in the outer tread for quiet and comfort and when it wears off around ~20k goes into a hard rubber to gI've longevity. (At least that's what the mechanic at Sams Club told me his tire rep told him. Sounded reasonable.)

 

I like Bridgestone. Just put a new set on last year. I'm running Dueler H/L 422's. Can't say about the Alenzas.

 

Went through local Ford dealer. They matched Tirerack''s price and got a rebate for using Ford Credit card (no interest one year - opm) and another rebate for the tires. You can apple for Ford credit at the service desk.

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  • 5 months later...

Well, I have read all the posts here and even as a  senior fellow I find that buying tires is like buying diamonds.  I have not idea what I am really buying.  My experience is that every set of new tires make the ride feel like brand new as so it is.  However after 10,000 miles or so you really start to notice the difference.  I must also so that here is southwestern PA I have never had a set of any brand tire last more that 28,000 to 30,000 miles.  So.... based on all the information I could glean from Tire Rack, I just had a set of General Altimax RT43  tires installed.  (245/50/20)  Primarily I was interested in handling, ride quality, road noise, and of course tread wear.  While not perfect in every category, these seem to fit the bill and as a bonus they were some of the least expensive.  Now here is a question I am almost embarrassed to ask.  Do recommend tire pressures vary with various brand of tires.  I know that Lincoln recommends 33 psi.  However, the tire shop put 36 psi in these tires.  On the short drive home I did not notice any difference.  However, in a day or two I am having the vehicle aligned and want to make sure that I am doing what is best for the vehicle and new tires.  Your help is, as always, sincerely appreciated. 

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