Originally Posted by UKDUDE
Mr B, the chart you attached is for XPS RIB tires, and they are probably not recommended for the rear axle on a Sprinter since they are extra heavy duty and probably won't make the rear ride softer under any circumstances. Also the tire dimensions are non-standard: should be 215.85 x 16 I believe.
Incidentally, that chart shows the total rear axle weight, no dividing by 4 is necessary here.
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Yes, UK Dude, I was mistaken with the tires size - we all have originally equipped 215x85x16 of course, and there are no RIB but regular traction tires, though the tire pressure chart shows the same numbers for all in this size.
The following is the result of my deep researches and conversations in different American and Russian forums.
Below is a screenshot from the official Michelin chart for the load and pressure.
The load is indicated per axle, not per wheel.
As I've told before, my real weight is 3520 lbs on the front axle, and 6510 lbs on the rear axle.
As per the chart, pressure have to be following:
For my front axle it is recommended 45 PSI in each tire.
For the rear axle it is recommended 45 PSI in each tire.
In accordance with official Michelin recommendation, from now and on I will be safely keeping the tire pressure of 45 PSI in each of four rear tires.
In accordance with our Protagonist recommendation, from now and on I will be safely keeping the tire pressure of 51 PSI in each of two front tires.
Comments are appreciated!