Tire Pressure

[Kenny4]

I have Wrangler Fortitude HT 275/65R/18. The Goodyear chart says 51lbs. I've been keeping it at 45lbs before reading the chart. What have you found best in your experience. Thanks

 

[Snofire]

Whatever is on the door is the best for the vehicle.

 

[Richard320]

My doorjamb sticker says 36 psi and that's about where I run 'em. They're wearing nicely and they don't squeal on turns like an underinflated tire would. Normal around town warm up gets them to 38F, 37 R. Sustained high speed driving heats them up to maybe 41 psi.

 

[UnloosedChewtoy]

I have Wrangler Fortitude HT 275/65R/18. The Goodyear chart says 51lbs. I've been keeping it at 45lbs before reading the chart. What have you found best in your experience. Thanks

Is that 51 lbs the recommended pressure, or the maximum pressure? For tires that size, most of the time that is around max pressure, and you almost never want to be running at that. I run mine at around 36-38 PSI.

 

[Kenny4]

It says maximum. I had 40 in each and the tire monitor came on, so that's why I went to 45. Here's a link to a chart.

Goodyear Wrangler Fortitude HT Tire Pressure

Discover the correct maximum tire load capacity and tire inflation pressures for Goodyear Goodyear tire model.

tirepressure.com

 

[5thGenLoco]

Generally the TPMS detects pressure variances between the tires, not the pressure itself. The TPMS has no idea what tire brand you have installed. With the stock tires on mine, same size but different brand, 38 front and 36 rear wore perfectly.

 

[mikeru82]

Whatever is on the door is the best for the vehicle.

^^This if you're running original tires under "normal" conditions. Once you replace them, whatever is on that sticker goes out the window depending on the type and size tire you install.

 

[Skippyteach]

My doorjamb sticker says 36 psi and that's about where I run 'em. They're wearing nicely and they don't squeal on turns like an underinflated tire would. Normal around town warm up gets them to 38F, 37 R. Sustained high speed driving heats them up to maybe 41 psi.

Doorjamb is not tire specific, other than for possibly the OEMs. Definitely look at what your tire needs. Different construction methods and load ranges require different pressures. For example, load range 117s will have a max pressure of 51, which I run when I'm towing 10K lbs. But if I'm just passengering it, I keep them at 45 for the more comfortable ride.

 

[rick619]

I'm running 40psi

 

[H2OMAN]

My TPMS bitches at me all the time. I'm running 35 inch F rated tires. If I ran them at 55psi like the door says I would get the Hell beat out of me. I run 40/40.

 

[HSKR R/T]

Whatever is on the door is the best for the vehicle.

Not once you remove the factory tires and use something else

 

[HSKR R/T]

My TPMS bitches at me all the time. I'm running 35 inch F rated tires. If I ran them at 55psi like the door says I would get the Hell beat out of me. I run 40/40.

Use alfaObd or Jscan to update the TPMS for the lower pressures

 

[H2OMAN]

Use alfaObd or Jscan to update the TPMS for the lower pressures

I know. But it's just one more thing in a long list of things I don't care about.

 

[Blackdog.Tx]

Not once you remove the factory tires and use something else

 

[Blackdog.Tx]

New tires/size may require different pressure. Also different loads/payload may require pressure adjustment. I have different tires than you, but I used a tire pressure calculator helpful for daily application.

Here's a calculator:

Tire Pressure Calculator

Easy to use tire pressure calculator. Use our tire pressure calculator to calculate the new tire pressure needed when changing tire sizes.

tiresize.com

When i switched from OEM to Toyo OC AT3, this calculater recomended 32psi for me vs 36psi on door sticker.

I emailed Toyo Cust service that confirmed the 32 psi for me. You can check with tire mfg recomendation.

From there, either reset the tpms sensor... or ignore it like me.

 

[boogielander]

easiest and most accurate way factoring in your constant weight is to perform chalk test.