Tire Pressure on Goodyear Endurance

[Chazblank]

Just got a set of Goodyear Endurance on our 25' Safari. What is a good tire pressure for these. I ran my old tires at max (50psi) and these are 80psi max and that seems excessive. Thanks, Charlie

[field & stream]

Find your tire size, determine the loaded weight of your trailer, and there’s the manufacturer’s recommendation.

https://www.goodyearrvtires.com/pdfs/rv_inflation.pdf

[jondrew55]

Oh no! Back from the grave!

[uraljohn]

OK, I will take a stab at this and hope I do not get blown up.

2 Airstreams. First 2017 International 23. Goodyear Endurance tires. Trailer weighed right at 5600 LBS ready to travel. Ran 55 PSI. Put 20K miles on it in 2 years. No problems and no popped rivets. Second 2019 Flying Cloud 25 RBT. Goodyear Endurance tires. Trailer weighs right at 6400 LBS ready to travel. Run 60 PSI. So far 25K miles. No problems and no popped rivets. This is how I run our rig and so far so good.

I treat our tow vehicle the same way. 2013 Ford E150 XLT Premium van. 8600 GVWR (yes, it is an E150). From factory with Michelin defenders with E Rating. Door sticker says 55 PSI Front, 80 PSI Rear when fully loaded. The van weighs 6400 LBS ready to travel. I run 50 PSI in front and 65 PSI in the rear. The front axle is rated at 3700 LBS and is only loaded to 3200 LBS ready to travel. The back axle is rated at 5120 LBS and is supporting 4200 LBS after hitching up the AS. This has worked well for us. Currently have 65K miles on the van tires and they still have a whole bunch of tread depth.

So. bottom line is to head to the CAT scale and do a 3 pass weigh in. Set your pressures to support your rig without beating it to death. 80 PSI in the trailer tires just beats up the trailer. IMHO.

[Rich Jenkins]

Working through this also.

Currently 75 psi on our 23GT FBT. No popped rivets but did have some cushions on the floor a couple times on our way back from Colonial to Florida last month. Hmmm...not sure if pressure or just Jersey Turnpike lol.

Using the GYE load chart for our rig, I’ll probably go with 65 here shortly. I know there is a wide range opinions on this, to say the least.

[StuartsDad]

I run 60 psi on our 28'.

[Chazblank]

Thank you for all the feed back. I think I'll go with 60psi.

[Fungus]

I run 55 psi on our 2017 25FB. I think, but not sure, that the OEM wheels are rated at 65 psi. One popped interior rivet this year.

[Dennis C]

I run my GYE tires at 70 PSI. All good.

[ROBERT CROSS]

Originally Posted by Fungus

I run 55 psi on our 2017 25FB. I think, but not sure, that the OEM wheels are rated at 65 psi. One popped interior rivet this year.

I run just enough....65-75...


Bob
🇺🇦🇺🇸🇺🇦

CK the inside of the wheel...max wheel pressure may be stamped.

[CapriRacer]

Originally Posted by field & stream

Find your tire size, determine the loaded weight of your trailer, and there’s the manufacturer’s recommendation.

https://www.goodyearrvtires.com/pdfs/rv_inflation.pdf

Just so everyone understands, those charts are MINIMUMS, not recommendations.

[field & stream]

Originally Posted by CapriRacer

Just so everyone understands, those charts are MINIMUMS, not recommendations.

This is accurate, and a very significant clarification to my poorly worded comment. Thank you!

The charts are labeled minimums for normal road service, not the manufacturer’s recommendation for any particular application. Similarly, the maximum recommended by the manufacturers (stamped on the sidewall) is not their recommendation for any particular application either. The optimum pressure for any application probably is neither the max nor the min.

OK, I’ll venture an opinion: given the frequency of reports of falling cabinets and dining tables, popped rivets, tossed cushions, etc. I avoid the higher end of the range. Midway seems to work well for us.

[jadatis]

On forest river forum similar question
https://www.forestriverforums.com/fo...si-249914.html

Already more then 100 reactions.
Search for my first post # 62, in wich I stated that if you let me calculate it with my extra safe spreadsheet, both the C- and E- load tires could give pressures below 50 psi, because tandemaxle tralers often have comfortable reserves.

In that topic it appeared to be not true , and The E- load needed 74 psi to give all the reserves without bumping.
But I based that on airstream TT's in the past, so here probably I am right.

So give old and new tiresises and maxload and loadrange and if ST.
And of TT the GVWR, GAWR's and number of axles ( I assume 2 axles) .
Then I will do the calculations .
Better ofcource weighed axle-end loads fully loaded.

[Mollysdad]

Originally Posted by field & stream

Find your tire size, determine the loaded weight of your trailer, and there’s the manufacturer’s recommendation.

https://www.goodyearrvtires.com/pdfs/rv_inflation.pdf

The GoodYear chart is the same chart used for GY Marathons, so that should tell you something.
I always ask those using the chart to explain it. They can't.
So, instead of the recommended 28 psi, I decided on 65 psi.
"If driving on I-95 or I-10, reduce pressure to 60 psi." That's science, man!

Originally Posted by CapriRacer

Just so everyone understands, those charts are MINIMUMS, not recommendations.

Why would I understand that? The word minimum doesn't appear anywhere. Is Goodyear that careless?

[jadatis]

About that Goodyear list, I also wrote in the forest river topic. Same post #62

In post #104 my end conclusion, after that only defending the statements I made about higher then reference-pressure ( that 50 and 80 psi) , and needed reserves that ate higher then 5% .

Is expantion of the old marathon list in the sises that are the same, so calculated for 65mph , and with an old formula introduced in 1928 for diagonal tires, that leads to much higher loadcapacity's then the european formula for all kind of radial tires, that since 2006 is also used in US for P-tires, and lately discovered also for trucktires and semi-trucktires like for large RV.
Only LT is now still calculated with formula that leads to higher loadcapacity's, not that bad as the ST lists.

[jadatis]

All pressure loadcapacity lists give loadcapacity for the pressure with no reserve also the european lists.
Mayby the maxload of tires is calculated with a little reserve, but I would not bet on it.
So the reserves you have to add yourselves first, before looking back in the list.

Some traveltrailer tirepressure-calculators go from 90% used of the loadcapacity belonging to the pressure, so then you dont need to add that first.

In my made spreadsheet I also go from 90% using, and 10% of total weight on towbar
So total weight minus towbar 10% is 90% left on wheels , then adding 11% to that gives again 100% of total weight, for wich pressure is calculated.

Why that complicated?
Because european traveltrailers, have between 1% and 10% on towbar ( axle placed more to the front)
Then I use 4% as towbar weight, left 96% on wheels / 0,9 gives 106.6% of total weigt to calc pressure for.

Only if you choose American Inglish as language, the towbar weight is set to 10%. Together with tire instead of tyre, lbs instead of kg, and some other things.

[2012FB]

Originally Posted by Chazblank

Just got a set of Goodyear Endurance on our 25' Safari. What is a good tire pressure for these. I ran my old tires at max (50psi) and these are 80psi max and that seems excessive. Thanks, Charlie

55psi

Had my new truck in for service and asked that they rotate the tires and reset the pressures. I pick up the truck and had not got but a few blocks when I noticed how harsh the ride seemed. Scrolled to the psi screen and sure enough, my fronts were at 50 and the backs at 35. Went back and had them adjust the fronts and rears down to 35. I'll put 50 back in the rears next tow. What a world of difference. Running at max pressures on the trailer is being very "harsh" to your pride and joy. Recommended minimums for weight plus 5 works for me.

[majorairhead]

I run 'em at 70-72.

[urnmor]

Around 65 as that is what is recommended

[fclewis]

Originally Posted by Chazblank

Just got a set of Goodyear Endurance on our 25' Safari. What is a good tire pressure for these. I ran my old tires at max (50psi) and these are 80psi max and that seems excessive. Thanks, Charlie

Just dropped my FC 25' 2016 off at AS for service and they recommend 80 psf as per trailer sticker. I have been running at 65 psf for 12,000 mi and do rivets. Always stuff on the floor usually due to road conditions.