Tire Pressure (passenger)

[fj5000]

Hi gang. Have moved into a new tire. Defender 275/65/18 (p-metric). Very happy.
Given the size difference from factory - how do I find the right (suggested) psi for this sized tire on this car?

called Michelin and they said they didn’t know - would have to check with manufacturer.
Any ideas? Running 38 now. Which is the same psi I was running when I had the e rated defenders on....

 

[NYC570]

Tire Pressure recommendation

forum.ih8mud.com

 

[gaijin]

Hi gang. Have moved into a new tire. Defender 275/65/18 (p-metric). Very happy.
Given the size difference from factory - how do I find the right (suggested) psi for this sized tire on this car?

called Michelin and they said they didn’t know - would have to check with manufacturer.
Any ideas? Running 38 now. Which is the same psi I was running when I had the e rated defenders on....

If you are asking about the Michelin Defender LTX M/S tires, then you need to double check the tire size. Michelin does not offer a P-Metric P275/65R18 size for that tire. You need to tell me whether you are asking about the ISO-Metric 275/65R18 SL 116T tire or the LT-Metric LT275/65R18/E 123/120R tire.

And please confirm that you are asking about use on a Land Cruiser 200, not an LX570.

Thanks

 

[gaijin]

Hi gang. Have moved into a new tire. Defender 275/65/18 (p-metric). Very happy.
Given the size difference from factory - how do I find the right (suggested) psi for this sized tire on this car?

called Michelin and they said they didn’t know - would have to check with manufacturer.
Any ideas? Running 38 now. Which is the same psi I was running when I had the e rated defenders on....

As I responded to your PM, and for the benefit of anyone else interested:

Just to be clear, you are asking about the ISO-Metric 275/65R18 SL 116T tire, right?

There are basically four kinds of tires and the RCTIP is calculated differently for each of them.

1. P-Metric tires for example P275/65R18. This would be the same as what you are calling a "passenger" tire.
2. ISO-Metric tires for example 275/65R18 SL 116T. For these tires it is important to know whether the tire is SL or XL and the Load Index.
3. LT-Metric tires for example LT275/65R18.
4. Flotation tires for example 33x11.50R18LT.

And, I'll assume you are using these on an LC200 and not an LX570, right?

If my assumptions are correct, then:

The RCTIP for those ISO-Metric 275/65R18 SL 116T tires on your LC200 is 33psi F/R.

HTH

 

[fj5000]

As I responded to your PM, and for the benefit of anyone else interested:

Just to be clear, you are asking about the ISO-Metric 275/65R18 SL 116T tire, right?

There are basically four kinds of tires and the RCTIP is calculated differently for each of them.

1. P-Metric tires for example P275/65R18. This would be the same as what you are calling a "passenger" tire.
2. ISO-Metric tires for example 275/65R18 SL 116T. For these tires it is important to know whether the tire is SL or XL and the Load Index.
3. LT-Metric tires for example LT275/65R18.
4. Flotation tires for example 33x11.50R18LT.

And, I'll assume you are using these on an LC200 and not an LX570, right?

If my assumptions are correct, then:

The RCTIP for those ISO-Metric 275/65R18 SL 116T tires on your LC200 is 33psi F/R.

HTH

Wonderful. Thank you!