Towing Pressure

[Stevedbvik1]

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[Grandaccess]

My Bad ...

 

[jflogerzi]

This is real easy. The tire pressure that your tire should be at when towing or unloaded is on the door placard. It says 30 PSI on the door placard? Then you need to put them at 30 psi. Keep in mind that it's going to be cold pressure. If you've been driving for a while then you are no longer at cold pressure.

To give you an idea with my 2019 Ranger that I had factory tires 32s and 33s on, I had no problems running 30 PSI when towing. It handled the load just fine

It depends on the load range of the new tires. Just because the door says 30 PSI... dose that means its correct... Terrible advice. My Truck came with Factory LT tires and the recommended cold is 37 psi

 

[Frenchy]

It depends on the load range of the new tires. Just because the door says 30 PSI... dose that means its correct... Terrible advice. My Truck came with Factory LT tires and the recommended cold is 37 psi

Just because you have a set of LT tires does not mean the OP has a set of LT tires. Simple as that

 

[jflogerzi]

Just because you have a set of LT tires does not mean the OP has a set of LT tires. Simple as that

and hence my comment on load range and pointing out just look at the door is bad advice

 

[Frenchy]

and hence my comment on load range and pointing out just look at the door is bad advice

Incorrect. The door placard is the best place. Why? Because it states the best tire pressure to run for said vehicle. I don't care if it is the Ranger or even my Frontier. It states the best tire pressure to run regardless of the load.

 

[Stevedbvik1]

Isn’t the door placard showing the psi for the tires that the truck was built with? So if you replace the tires with something else wouldn’t that negate what the placard says? Example: my door placard states 39 psi. So what’s the difference between a Ranger that shows 30 psi and one that shows 39 psi?

 

[Frenchy]

Isn’t the door placard showing the psi for the tires that the truck was built with? So if you replace the tires with something else wouldn’t that negate what the placard says? Example: my door placard states 39 psi. So what’s the difference between a Ranger that shows 30 psi and one that shows 39 psi?

Remember that the two different placards primarily had to do with the tire being an LT or not. Keep in mind that when I had my 2019 it came with standard tires and stated 30 on the placard. What pressure did I run? With factory, 32's and 33's I ran 30 PSI. I did not have an issue with it at all

 

[ControlNode]

I feel the US documentation is "dumbed down" due to US Education or something. In UK this is what they say about tire pressures, notice there is no single pressure listed.

UK Ranger Wheels and Tires - Tire Pressures

And when I look up the Focus, there is so much information, speed/load dependent for some models.

UK Foci Standard, ST and RS.

 

[Frenchy]

I feel the US documentation is "dumbed down" due to US Education or something. In UK this is what they say about tire pressures, notice there is no single pressure listed.

UK Ranger Wheels and Tires - Tire Pressures

And when I look up the Focus, there is so much information, speed/load dependent for some models.

UK Foci Standard, ST and RS.

Keep in mind that the Focus is a completely different vehicle than the Ranger. Each vehicle is going to have a different rating. That door placard will state the rating for the vehicle it is attached to. For example I had my 1993 Nissan Pathfinder and it stated to run 26 PSI. That said you could talk to many individuals that thought that was a horrible idea simply because it was lower than 30 PSI. I happily informed those individuals that Nissan never had the issue that Ford did with vehicles flipping due to low tire pressure and tires exploding.

 

[ControlNode]

Keep in mind that the Focus is a completely different vehicle than the Ranger. Each vehicle is going to have a different rating. That door placard will state the rating for the vehicle it is attached to. For example I had my 1993 Nissan Pathfinder and it stated to run 26 PSI. That said you could talk to many individuals that thought that was a horrible idea simply because it was lower than 30 PSI. I happily informed those individuals that Nissan never had the issue that Ford did with vehicles flipping due to low tire pressure and tires exploding.

Of course, the Focus is different, but the fact is that there is not a one pressure for all uses, even for the Ranger. It's clearly documented in foreign markets to have different recommended pressures based on load, but for some reason that was too complex for most US driver's because they don't want to think, they just want to get in and drive to their destination.

 

[Frenchy]

Of course, the Focus is different, but the fact is that there is not a one pressure for all uses, even for the Ranger. It's clearly documented in foreign markets to have different recommended pressures based on load, but for some reason that was too complex for most US driver's because they don't want to think, they just want to get in and drive to their destination.

And the funny thing about that is I have ran the same pressure on a particular vehicle with no problems both unloaded and loaded. This is thanks to radial tires versus the old bias ply tires. Way back in the day when all you had was bias play tires, absolutely you would vary your pressure. People would inflate their tires until they were ballooned at that time. Obviously we don't want to do that anymore since we need to make sure we have the correct amount of tread on the road. Things have changed many years ago

 

[Raygunn]

and hence my comment on load range and pointing out just look at the door is bad advice

You nailed it, this is the reason for my question. The door placard applies to the stock sl tires. I bought xl rated tires of a different size. It's funny, there's a section on the Cooper Tire website that stresses how important it is to have the correct tire pressure, but it doesn't have any kind of pressure chart for different tires/applications, nor will they respond to my emails.

 

[Frenchy]

You nailed it, this is the reason for my question. The door placard applies to the stock sl tires. I bought xl rated tires of a different size. It's funny, there's a section on the Cooper Tire website that stresses how important it is to have the correct tire pressure, but it doesn't have any kind of pressure chart for different tires/applications, nor will they respond to my emails.

Most tire manufacturers will simply state to follow the Factory Recommendations on tire pressure. Also as I stated I have gone to a bigger tire with my Ranger in both standard and LT. I still kept the same tire pressure and did not have an issue

 

[ControlNode]

And the funny thing about that is I have ran the same pressure on a particular vehicle with no problems both unloaded and loaded. This is thanks to radial tires versus the old bias ply tires. Way back in the day when all you had was bias play tires, absolutely you would vary your pressure. People would inflate their tires until they were ballooned at that time. Obviously we don't want to do that anymore since we need to make sure we have the correct amount of tread on the road. Things have changed many years ago

Just because you have followed a dumbed down policy for the US market and had no issues doesn't mean it's the best answer. It is an answer, and a way of doing it, but I still think the ROW documentation is more accurate, and applies to radial tires (if you haven't notice, US ain't the only place with radials). The problem in the US is we have too many drivers and not enough vehicle operators that know how and when to adjust things on the vehicles they drive, so to not confused the masses, it's all dumbed down here.

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