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Old 07-21-2019, 01:18 PM   #1
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5.0 TA tow vehicle tire pressure

I am wondering what opinions and advice others have concerning the tow vehicle's tire pressures when towing a 5.0TA. Thanks, Ronn
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Old 07-21-2019, 01:36 PM   #2
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The answer to that question will be specific to your truck and what tires you have on it - there's a wide range of tire types, weight ratings, and max inflation pressure.

In general the tire pressure recommended by the truck manufacturer, and posted on the door frame sticker, will be on the low side. Trucks tend to ride smoother with lower tire pressure. When we are towing our 5.0TA I air up the back tires closer to the maximum cold pressure indicated on the tire - they are at their full rated weight capacity when they are at that max pressure. I have not noticed a significant difference in the smoothness of the ride with more pressure in the rear tires while towing.

Things are different if you are using heavy LT load range E tires on your truck. They often have very high max pressure ratings, as much as 80 psi, and are capable of carrying more weight than you need. If you inflate LT tires up to their max pressure you will get a noticeably rough ride.
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Old 07-21-2019, 01:39 PM   #3
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I go by the sticker on the door jamb, 60 & 65, and I have E rated tires.
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Old 07-21-2019, 02:16 PM   #4
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Interestingly though are the trailer tires. My first 3 Escapes had 50 psi tires, the new one has 65 psi tires....
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Old 07-21-2019, 03:06 PM   #5
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The manufacturer's recommended inflation pressure is certainly the right starting point, and for most people the only pressure to use. It will be high enough to handle the rated axle load, and how far above that depends on the manufacturer's chosen compromise between handling, ride, and fuel economy.

There may may not be a benefit of going higher.
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Old 07-21-2019, 06:41 PM   #6
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[/B]
Quote:
Originally Posted by Brian B-P View Post
The manufacturer's recommended inflation pressure is certainly the right starting point, and for most people the only pressure to use. It will be high enough to handle the rated axle load, and how far above that depends on the manufacturer's chosen compromise between handling, ride, and fuel economy.

There may may not be a benefit of going higher.
Hi Brian, do you mean the vehicle manufacture's recommended tire pressure?

Thanks, Ronn
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Old 07-21-2019, 07:22 PM   #7
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Quote:
Originally Posted by Ronn View Post
Hi Brian, do you mean the vehicle manufacture's recommended tire pressure?
Yes, the vehicle manufacturer. The tire manufacturer does not publish recommended inflation pressure, only the minimum inflation pressure for various loads, and the maximum inflation pressure.
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Old 07-21-2019, 07:25 PM   #8
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Quote:
Originally Posted by davidmurphy02 View Post
... they are at their full rated weight capacity when they are at that max pressure.
Although more pressure in general means more capacity, standard load range "P" type tires (which are commonly used on pickup trucks) typically reach their maximum load capacity at about 35 PSI, but can be inflated to 44 PSI.
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Old 07-21-2019, 07:32 PM   #9
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Quote:
Originally Posted by Brian B-P View Post
There may may not be a benefit of going higher.
This was supposed to be
There may or may not be a benefit to going higher.
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