Should You Add More Tire Air Pressure When Pulling A Trailer?

Topic: Tire pressure while towing

Posted Past: mikenannie on 09/07/12 03:07pm Our new F150 has goodyear Wranglers on information technology. Load Range C, and max psi is 50.

The sticker on the side of the commuter door says to inflate these tires to 35 psi. The truck manual says to inflate them to whatsoever the door sticker says - no more regardless of the max indicated on the tire.

Online it seems that many folks say to air up the tires while towing. The tires say the max load is available when the tires are inflated to fifty psi.

Should I disregard the truck manual, and the truck door sticker, and inflate the tires to 50 psi when I'm towing our travel trailer?

Trailer weights 5000 lbs, about 650 lbs of tongue weight.

thanks

Posted By: skipnchar on 09/07/12 03:27pm The number on your door post is the pressure level needed in the OEM sized tire to bear your trucks GVWR. At that place is null especially Incorrect with inflating to the max on the tire sidewall however y'all'd need to keep an heart on the tires for signs of excess wearable in the center of the tread. When tires are over inflated based on the weight existence carried that is the place vesture mostly occurs. About the simply OTHER affair that happens from inflating them fully is an uncomfortable ride.

Good luck / Skip

2011 F-150 Hard disk Ecoboost three.5 V6. 2550 payload, 17,100 GCVWR -
2004 F-150 Hard disk (Traded afterwards 80,000 towing miles)
2007 Rockwood 8314SS 34' travel trailer

U.s.a. Govt survey shows three out of four people make up 75% of the total population

Posted By: Dick_B on 09/07/12 03:32pm I load up my RV tires to the max. cold pressure level and the rear tires on my Suburban to the max (80 psi) and the front tires to 85 psi for towing. Back downwardly to 55 psi on the Suburban when not towing.

Dick_B
2003 SunnyBrook 27FKS
2011 3/four T Chevrolet Suburban
Equal-i-zer Hitch
One married woman, two electric bikes (both Currie Tech Path+ models)

Posted By: ScottG on 09/07/12 03:57pm The tow-handling is going to be better at 50 psi - that is what I would use.

Posted Past: the bear II on 09/07/12 04:45pm Always go past the pressure shown on the sidewall of the tire.

You tin can bank check some of the tire manufacturer websites to locate a nautical chart that will prove pressure you tin use depending on the weight you carry.

I always fill my tires to the max PSI shown on the sidewall. I know others lower the pressure to the minimum when not towing to better the ride. It'south a truck I similar the crude ride.

Posted Past: MitchF150 on 09/07/12 04:48pm At that place is no F150 that came OEM with LR C tires... [emoticon]

They are either "P" rated on all 5 or 6 lug wheels or were LR D rated for the old "7700" HD version (7 lug wheels) or LR East for the current HD version (withal 7 lug wheels)...

I've got aftermarket LR C tires on my F150, simply I run them at around 40 PSI on the rear and 44 PSI on the front end when I'm not towing and I put them all at 50 when I'm towing my #5000 TT.. That's just what I practice and detect information technology works well for me.. [emoticon]

I'll bet if you look at your door jamb closer, it'll say the OEM tires are a "P" rated tire...

Good luck!

Mitch

2013 F150 XLT 4x4 SuperCab Max Tow Egoboost 3.73 gears #7700 GVWR #1920 payload. 2019 Rockwood Mini Lite 2511S.

Posted By: spoon059 on 09/07/12 11:14pm There is a method for calculating the optimal PSI based upon your full weight. It has something to do with finding your full weight per axle and so determining the optimal pressure per tire for that specific weight. I'm not sure how to do it and don't have my axle weights handy...

I prefer a simpler method... At the first fillup while towing, I bank check the temp of the tires. If they are hot, your tires are flexing a lot, which means y'all need a higher PSI. Raising the PSI reduces flex, which reduces rut, which reduces chances of tire failure. I found that in MY truck, with MY trailer and MY Due east rated tires, 50 lbs forepart and 55 lbs rear gives me a decent ride, reduced flex/lower tire temps, and equal tread wearable.

2015 Ram CTD
2015 Jayco 29QBS

Posted By: edatlanta on 09/08/12 06:16am I tow with 80 psi in the rear and 60 in the front end. 55 in both forepart and rear when not towing and so the tires don't wear out in the center. Works for me and has for a long time.

Ed
KM4STL

2006 GMC 2500HD CCSB 4x4 Duramax/Allison, Titan 52 gallon fuel tank, Prodigy Controller, B&W Companion Hitch, Progressive Industries European monetary system-PT50C, TST Systems 507 TPMS
2010 Jayco Designer 35RLTS,Cummins/Onan RV QG 5500 EVAP
Fulltime since 2010

Posted By: JIMNLIN on 09/08/12 07:55am I accept Due east tires on my 2500 Contrivance and ....... never mind that info is usless for your C tires.

All the same my married woman has a 1500 crew cab 4x4 chevy with LT C tires. When empty I notice 35 psi in the rear and xl psi in the forepart works all-time on her truck. When towing a 10k flatbed trailer with 900 lb hitch weight, I pump the rears to 50 psi and leave the fronts alone as they don't gain whatsoever weight.

"good judgment comes from experience, and a lot of that comes from bad judgment" ............ Will Rogers

'03 2500 QC Dodge/Cummins HO 3.73 vi speed manual Jacobs Westach
'97 Park Avanue 28' 5er 11200 two slides

Posted By: rhagfo on 09/08/12 08:07am

edatlanta wrote:

I tow with fourscore psi in the rear and 60 in the front. 55 in both front and rear when not towing so the tires don't wear out in the center. Works for me and has for a long time.

Yes merely you besides likely have Due east rated tires.

Russ & Paula the Beagle Belle.
2016 Ram Laramie 3500 Aisin DRW 4X4 Long bed.
2005 Copper Canyon 293 FWSLS, 32' GVWR 12,360#

"Visit and Enjoy Oregon State Parks"

Posted By: RWDIII on 09/08/12 10:09am Dissever the difference,50lbs rear,35 forepart.
someone put those tires on,Only the F150HD comes with LT tires.
Running 50 lbs in a LT C tire will not cause information technology to wear out,every bit it is non overinflating them.

Erstwhile 2006 F150 4wd 7200gvw,Lt275-65-18,Scan Guage,Garmin,flowmaster,load levelers,Firestone work rites Bronco 800

NEW 2015 F250 Scab 4wd 10000 gvw, 6.2 Scan guage,Garmin,piece of work rites,3200 lb load,1800lb Palomino Backpack SS1200

Posted Past: WellShooter2 on 09/08/12 03:25pm

spoon059 wrote:

There is a method for calculating the optimal PSI based upon your total weight. It has something to practise with finding your total weight per beam and then determining the optimal pressure per tire for that specific weight. I'yard non sure how to do it and don't take my axle weights handy...

I adopt a simpler method... At the first fillup while towing, I check the temp of the tires. If they are hot, your tires are flexing a lot, which means you need a higher PSI. Raising the PSI reduces flex, which reduces heat, which reduces chances of tire failure. I institute that in MY truck, with MY trailer and MY E rated tires, 50 lbs forepart and 55 lbs rear gives me a decent ride, reduced flex/lower tire temps, and equal tread wearable.

A simple, easy to sympathise and correct methodology. I practise a similar thing.

2008 2500HD D/A
2008 Keystone Challenger

Posted Past: time2roll on 09/08/12 03:36pm

MitchF150 wrote:

In that location is no F150 that came OEM with LR C tires... [emoticon] They are either "P" rated on all v or 6 lug wheels or were LR D rated for the one-time "7700" Hard disk version (seven lug wheels) or LR E for the electric current Hard disk drive version (nonetheless 7 lug wheels)...

My SuperCrew with optional 4wd & offroad package came oem with LT265/70R17-C Goodyear Wrangler AT/S. This tire size is specified on the oem door sticker - not a dealer addition. This is not a 7700 or 8200 GVWR truck as Hard disk payload was not available in SC. Great tires BTW they lasted 89,000 miles [emoticon]

To the OP my door says 36 merely I run 40 in front end and 45-fifty rear when towing. I presume the 36 should exist fine upwards to the GAWR and I remember some additional force per unit area provides a more stable ride and cooler running. The center tread does not wear prematurely.

2001 F150 SuperCrew
2006 Keystone Springdale 249FWBHLS
675w Solar pictures back upward

Posted By: Cummins12V98 on 09/08/12 06:10pm Weigh all your tires when loaded and use the tire pressure chart associated with your tire size.

2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10'southward
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&Westward RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

Posted By: MitchF150 on 09/08/12 09:44pm

smkettner wrote:

MitchF150 wrote:

There is no F150 that came OEM with LR C tires... [emoticon] They are either "P" rated on all 5 or 6 lug wheels or were LR D rated for the old "7700" HD version (7 lug wheels) or LR Eastward for the current HD version (notwithstanding seven lug wheels)...

My SuperCrew with optional 4wd & offroad bundle came oem with LT265/70R17-C Goodyear Wrangler AT/S. This tire size is specified on the oem door sticker - not a dealer add-on. This is not a 7700 or 8200 GVWR truck equally HD payload was not available in SC. Corking tires BTW they lasted 89,000 miles [emoticon]
.

Wow... That's something I've never heard of or seen in all the F150's I've ever looked at that did non have vii lugs on the wheels..

That's quite the selection you got at that place! Are they sixteen" or 17" wheels?

Mitch