Tire pressure in spare (1 Viewer)

[Licious]

I picked up my OT a couple of weeks ago, and I noticed the spare was reading 55 psi. I am planning to let out some of the air to get it around 40 psi (knowing it will lose a little more air over time).

Does anyone know if there us any way to access the valve stem without having to completely remove the spare tire from its holder? I know it's not a hard task to remove the spare, but it's a lot less work if there's a trick to accessing the valve without removing the entire spare just to let out a little air.

Thanks!

 

[TmoEng]

TLDR: Yeah if you can lay in your back under the car it's not an issue.

The valve stem points up but for letting air out it's doable. 4Runner spares are the same setup (almost exactly) and I've filled them before by only using an angled air hose fitting.

Two things to note: the GX has a nice rubber-ish cover on top of the spare that plugs into the lug holes. It keeps the face of the wheel protected but it may get in your way.

Second: the finish on the OT wheels can scratch somewhat easily, be careful if you are somewhat awkwardly working with it.

 

[Licious]

TLDR: Yeah if you can lay in your back under the car it's not an issue.

The valve stem points up but for letting air out it's doable. 4Runner spares are the same setup (almost exactly) and I've filled them before by only using an angled air hose fitting.

Two things to note: the GX has a nice rubber-ish cover on top of the spare that plugs into the lug holes. It keeps the face of the wheel protected but it may get in your way.

Second: the finish on the OT wheels can scratch somewhat easily, be careful if you are somewhat awkwardly working with it.

Thanks! I'll give this a try.

 

[SandMonster]

I picked up my OT a couple of weeks ago, and I noticed the spare was reading 55 psi. I am planning to let out some of the air to get it around 40 psi (knowing it will lose a little more air over time).

Does anyone know if there us any way to access the valve stem without having to completely remove the spare tire from its holder? I know it's not a hard task to remove the spare, but it's a lot less work if there's a trick to accessing the valve without removing the entire spare just to let out a little air.

Thanks!

Is it bad for the tire if the PSI is left that high over a long period of time?

 

[Sixgun95]

Is it bad for the tire if the PSI is left that high over a long period of time?

No.

 

[cmfhsu]

In fact, Lexus purposely overinflates our tires during transport to prevent flat spots.

Storing a tire for a year at 60psi should be no big deal, but might be annoying if you ever get a flat tire and need to swap the spare in. I have mine set to 36psi (3psi above the door card recommended tire pressure) just so I don't have to worry about adjusting it in an emergency.

I do recommend being good about rotating the spare tire onto the vehicle every 5k miles though - because the combination of excess pressure and extra tire tread could cause traction control or center differential problems.

 

[nartmot]

To make the valve more accessible for easier top-offs, you can get a schrader valve extension hose like this and leave it connected all the time: Amazon.com: Mellbree Tire Valve Extensions, 8.25 Inch Flexible Schrader Tire Valve Stem Extension with 90 Degree Schrader Tire Valve Stem Extension Adaptor Compatible for Harleys, RV, Bicycles, Motorcycles（2pcs） : Automotive

 

[Garauld]

Some time ago after I rotated my tires, I received a tire error icon showing my spare was a couple of psi under the pressures of the other 4 tires. I lowered the spare and used my onboard compressor to pump it up a few psi over the other 4 tires. The error went away. Yesterday, the same tire error icon showed up and the attached image shows the issue? WTF?