Tyre Pressure

Hi Peace.
I have a Golf outback & use 42psi. Went to Darwin last July with no problem.
However, I would drop pressures on rocky/unsealed roads.

Cheers.
Vince

Running 45 PSI in my LT tyres on me Rapid.

short answer is no...... but !!!
You need to know the weight of the van, the type of tyres, remember heat will increase the pressure also so at 42psi cold it could possibly get to 50psi hot and some tyres will be so hot you can not touch them with bare hands .....
Higher pressures will be better for fuel economy, will add stability to it with less rolling and will run cooler with loads, only "protection" to side walls will be they wont flex as much...
Lower pressures will soften the ride and tend to adsorb corrigations better .... but will run hotter as the tyre is flexing more
Another thing to think about is a balloon, pump it up hard and the slightest touch with something sharp it will burst, half blow it up and it is harder to pop, the same goes for tyres, very hard tyres will blow out with only a small sharp object, let them down and it can flex in the tread and sides before it will penetrate..
Cheers
Joe

Sun chaser, you need to read what the ratings on the tyre fitted to your caravan are, and don't exceed them.

The Barum's I run are rated to 65 psi and 950kg load rating each.

I run them now at 45psi after experimenting with pressures, and find that pressure works great for those tyres on that caravan. I don't run 45psi for the road heat, but more for the weight and ride and economy, and the tyres don't overheat. You may need to experiment a bit as well to get it right. I'm no tyre expert, but that works for me.

I sure hope they are still available when it comes time to replace.

Cheers from Fred

In both of my vans I have run 45lb COLD they warm up to 49lb and a bit more on the sunny side The temperature usually rises to less than 10 above ambient.

Thats good enough for me. Been doing that for 55,000k.

If your tyres are getting that hot they are under inflated
High pressures will not heat a tyre up
Most caravan tyres are light truck and readily accept pressures around 45-65 lb
I rum my coromal corvair single axle at 50lb
Never had any problems and definately havent had hot tyres

Short answer is yes it is ok. Assuming sealed hot roads
On high speed gravel I'd definatly drop them
On low speed off road I'd drop thm more
I have a rule of thumb a served me well. Van tires as high as highest car tire (usually rear tire)
On low seed/sand the van is as low as the lowest car tire - usually front

CJ

Cheers everyone i really appreciate your time for getting back to me!