tyre pressure

what presures on my tyres???????
i.ve got a 2.8 diesel hiace camper.and a jap handbook,with pictures.nice but usless

i run mine on 40psi

Am running 18" mags on 38psi

Isn't there a tyre specification label on the driver's door frame? It seems that there are different models. Mine runs light truck tyres with the label showing 50psi front and 65 rear.

It all depends on the tyres, Light truck tyres are designed for higher pressures as MalL has said. I have 215/70/15 Yokahama AT tyres which sit just right at 45 psi front and rear. You can test the contact patch by driving slowly driving across a wet concrete patch onto a dry section and check you are getting full width pattern. I would start at max pressure listed on the sidewall and go downwards. The pressure listed on my placard is 35psi but at that my sidewalls are running on the ground. This might have been ok for the original tyres. Later tyres I have found require more pressure as the sidewall stiffness is less than used to be manufactured. Different tyres vary greatly in the construction and therefore pressure required. Slightly overinflated tyres will greatly outperform slightly underinflated tyres in braking and handling. They will also run cooler.

Cheers, Dave

I probably need to look at my pressuires as i lost it completely the other day, uphill, on a bend in the wet. some rather surprised passengers!!! although i could start a Sideways in Sydney movie - any helpers?

My Prado is placarded at somewhere around 30psi I think but the local dealer recommended increasing to 40. It certainly improved things, especially in the wet.

I don't know for sure but guess that 65psi for the rear of my Hiace would be right for a loaded cargo van but might be overdoing it for a lighter (?) campervan.

Diverting slightly from the topic, but I have had problems with all four tyres loosing pressure, to the extent of at least 10psi a week. I took the van into Beaurepairs today and they found that the cause was the knock-on type balance weights. They've replaced them with a stick-on type.

My recently acquired Hiace is missing the tyre pressure label. I've got the english translation of the owner's manual but unfortunately it does not provide any info on what the correct tyre pressures are.

The van is currently on Bridgestone RS600 light truck tyres 195/80 R15. The front tyres are at 40 psi and the rear tyres 45. Are these ok ?

Thanks

my very reliable tyre people looked at the van knowingly the other day and said "50 all round - they could go to 60 but why would you." These are very chunky tyres it must be said . . .

I have 235/60 all terrains on 16" alloys which I run at 45 front and rear. For me the trick is to get the tyres wearing evenly across the width of the tyre.
Too low and you'll wear out the shoulders pretty quick, too high and you'll wear down the centre (-this sounds like a porridge story! ).
45 gives a good ride with even wear across the width of the tyre.

Is anyone running off-road tires on their HiAce? I added Goodyear Wrangler Trail Runner AT 235/75/R15 to my 1995 Super Custom 4WD. I've been going with 32 PSI and am thinking to raise it to 40 psi as suggested above, but 50+ seems too high. Thoughts?