TYRE PRESSURES

More infomation required.
Make, model, year.
Tyre size?
Is the 1l00Kg the TARE or ATM?
Ozjohn.

The tyre pressure should be on the van compliance plate.

Yes we do need some more information, in particular the tyre type size and profile.

The brand of tyre is not all that important.

there will be a designation printed on the tyre sidewall something like 185/70R14, or 185R14C.....these two look the same but are very different tyres.

As for the mass of the van.....have you put it over a scale fully loaded

From that we can look up load V preasure tables.....

you would be well advised to work the same exercise for the tow vehicles tyres particularly if they are non factory.

cheers

John,
have a look HERE