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Old 05-18-2022, 03:50 AM   #1
Pathman
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Tire pressure?

So what tire pressure do you all use while towing? Is the max pressure recommended?
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Old 05-18-2022, 04:05 AM   #2
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Look at the placard on the drivers front of your TT for a sticker showing the tire size and inflation for your rig. That will give you the proper air pressure for your loaded trailer. If you can not read the sticker, use the max pressure shown on the tire sidewall.
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Old 05-18-2022, 04:20 AM   #3
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Sorry, I meant on the tow vehicle. The door sticker in the truck only gives normal driving tire pressure.
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Old 05-18-2022, 04:36 AM   #4
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Originally Posted by Pathman View Post
Sorry, I meant on the tow vehicle. The door sticker in the truck only gives normal driving tire pressure.
Something applies, look at the tire loading sticker on the drivers door frame. The recommended pressure may not be the max for the tire. The case in point, the rear tires on our 2016 Ram DRW and likely Ford and GM recommend 65 psi on a tire with an 80 psi rating. That number is for full load on the axle of 9,750#, I am not there so run about 55 psi.
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Old 05-18-2022, 04:38 AM   #5
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Sorry, I meant on the tow vehicle. The door sticker in the truck only gives normal driving tire pressure.
Put together a signature with year, make and model of your camper and same for your tow vehicle and perhaps answers to the question you pose will have some context. UserCP; upper left in black band on each page and make sure you save it.
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Old 05-18-2022, 05:15 AM   #6
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Really depends on how much weight I’m putting on the truck. For example, if I’m towing a travel trailer with 1,000 lb tongue weight, II don’t run as high of a psi as when I’m towning a 5th wheel with 2500 pin weight. The tires on your truck will make a difference too, how much are they rated to carry at max psi based on the sidewall info. Some will say always run max, but if you’re not carrying that much weight, running max psi will cause the tire to balloon in the center and won’t give you full tread patch contact which is not as safe for many conditions but especially when stopping. As was mentioned, if we knew what truck and trailer combo you had, it’d be easier for us to provide info, but it really comes down to knowing your complete setup including tire ratings.
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Old 05-18-2022, 05:30 AM   #7
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As wiredgeorge suggested in post 5, go to the user cp in the upper left corner of the page, fill in the signature with all the truck and trailer information then save. Folks can give a much better answer knowing what it is they are addressing. To that point;

You have initiated multiple threads asking details of truck/trailer weights and how they are calculated. This thread is about determining tire pressures; not for the trailer but for the "tow vehicle". In the section "about me" it shows you own a Winnebago Travato Class B motorhome - not a tow vehicle or trailer. What kind of situation are you trying to address?
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Old 05-18-2022, 07:48 AM   #8
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Ok so I have a sale pending on the Travato, I pick up my Cougar Half Ton next week, so Im trying to get as much insight as possible as to the details that may make or break towing a fifth wheel for the first time.
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Old 05-18-2022, 08:28 AM   #9
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Let's try to address the truck and trailer tires at once as that is what your first post seemed to ask.

The trailer will have the tire size and pressure recommended for the trailer on the left front corner of the trailer. They will be st225/75r15 LRE tires. I'm sure it will say to inflate them to 80psi (max pressure) which is what you run. The trailer has a gvw of 11k lbs. The tires are rated at 2830lbs giving you a total tire support of 11,320 lbs. Not enough capacity reserves IMO (I don't deduct pin weight as some calculations do) but good for starters.

Don't know the trim level of the Ram but I'm sure the recommended tire pressures will be 65psi front, 80psi rear (max) and indicated on the door sticker inside the driver door (same as my Ram 2500 was). Run the tires at recommended pressures indicated when loaded. When not towing and the bed is unloaded I air down the rear to 65psi leaving the front at 65 psi. Some folks air down a little lower than that but I don't.
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Old 05-18-2022, 08:39 AM   #10
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Ok, the trailer info makes sense, copy that.


The truck is a Laramie package. The door sticker states 60psi front, 65 rear. It doesn't make any mention of load/no-load, it just says cold pressure.

So I ask, do you guys run your tires at the same pressure that the door sticker indicates when towing, or do you air up to max sidewall stated pressure (80psi) when towing?
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Old 05-18-2022, 09:25 AM   #11
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Don't know the trim level of the Ram but I'm sure the recommended tire pressures will be 65psi front, 80psi rear (max) and indicated on the door sticker inside the driver door (same as my Ram 2500 was). Run the tires at recommended pressures indicated when loaded. When not towing and the bed is unloaded I air down the rear to 65psi leaving the front at 65 psi. Some folks air down a little lower than that but I don't.
I've done similarly in the past , but could never figure out how to get the "low tire pressure" alarm to go away when I lowered the rear tire pressure.

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So I ask, do you guys run your tires at the same pressure that the door sticker indicates when towing, or do you air up to max sidewall stated pressure (80psi) when towing?
Like Sourdough said, 65 and 80 when towing if the tires are rated for that.
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Old 05-18-2022, 10:01 AM   #12
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Ok, the trailer info makes sense, copy that.


The truck is a Laramie package. The door sticker states 60psi front, 65 rear. It doesn't make any mention of load/no-load, it just says cold pressure.

So I ask, do you guys run your tires at the same pressure that the door sticker indicates when towing, or do you air up to max sidewall stated pressure (80psi) when towing?
Look at the side of a truck tire. What does the max @ psi say? That is what I fill my tires to when towing... in my case I have load range E tires on my truck and fill to 80 PSI but if you have a lower max @ psi on your truck tires, such as 65 PSI then you may want to fill to that amount.
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Old 05-18-2022, 10:12 AM   #13
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Is the truck a 2500? I’ve never seen a 2500 with that low of tire pressure on the door sticker. Mine says 70 and 75, not a Ram, recommended 60 psi on a LRE tire just seems low to me.
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Old 05-18-2022, 10:20 AM   #14
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I've done similarly in the past , but could never figure out how to get the "low tire pressure" alarm to go away when I lowered the rear tire pressure.



Like Sourdough said, 65 and 80 when towing if the tires are rated for that.

Copy, that’s all I needed to know. Yes they are load range E, 80 psi max.

Thanks.
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Old 05-18-2022, 10:21 AM   #15
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Copy that, same tires and 80 max on my truck.

Thanks.
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Old 05-18-2022, 10:28 AM   #16
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Tire pressure

Yes Bs it’s a 2500. Here is the door sticker.
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Old 05-18-2022, 10:31 AM   #17
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Thanks all, I believe I have my answer.
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Old 05-18-2022, 10:31 AM   #18
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My 2012 RAM says 60 front/75 Rear. That's where I run them. They are also E/80psi max tires.
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Old 05-18-2022, 11:31 AM   #19
sourdough
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Ok, the trailer info makes sense, copy that.


The truck is a Laramie package. The door sticker states 60psi front, 65 rear. It doesn't make any mention of load/no-load, it just says cold pressure.

So I ask, do you guys run your tires at the same pressure that the door sticker indicates when towing, or do you air up to max sidewall stated pressure (80psi) when towing?

Looks like Ram has changed their minds on recommended pressures for the new HD trucks. Since my '14 they've been 65/80 which was too high for an empty truck; looks like they've gotten more reasonable.

Your sticker of 60/65 will be just fine for an empty truck. When you drop that trailer on there the truck is going to be stretched weight wise so for sure air those rear tires up to 80psi. I would put 65 in the front but 60 would probably work if you find it more comfortable.

I'm glad you got the 4.10 rear, that truck needs it with that trailer. The 8 speed will make it much better as well.
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Old 05-18-2022, 12:18 PM   #20
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Looks like Ram has changed their minds on recommended pressures for the new HD trucks. Since my '14 they've been 65/80 which was too high for an empty truck; looks like they've gotten more reasonable.

Your sticker of 60/65 will be just fine for an empty truck. When you drop that trailer on there the truck is going to be stretched weight wise so for sure air those rear tires up to 80psi. I would put 65 in the front but 60 would probably work if you find it more comfortable.

I'm glad you got the 4.10 rear, that truck needs it with that trailer. The 8 speed will make it much better as well.
Thanks for the info.
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