Does anyone know if we should increase the tyre pressures on our caravan when we're towing? It makes sense to us that,if you're going to make your 'van heavier,then you're going to need more air in the tyres.We have an Abbey Spectrum 520 (1999) twin axle and its tyre pressures are usually 32.Does anyone else increase theirs?
Thanks
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The tyre pressure quoted by the vans manufacturer is always to suit the van when fully loaded to it's stated MTPLM, to take the weight above this is not recommended, albeit the combined SWL of the axles represents the ultimate max weight.
This weight you will find on a plate on the axles, using this weight as a maximum you may need a pressure increase and possibly a change of tyres to cope!
Quote: Originally posted by millermicm on 30/5/2011
Not on the caravan but you should on the car. I put my rears up by about 10 psi.
Both vehicles I use (Renault & Skoda) recommend car tyre pressure be increased by 3psi to all tyres when towing.
Certainly, as stated above, there's no requirement to increase the caravan tyre pressure.
Quote: Does anyone know if we should increase the tyre pressures on our caravan when we're towing?
You can tell whether your tyre pressures are about right quite easily. The difference in pressure between cold and hot should be about 4psi. If the increase is more than that after an hour on the road, the tyres are under inflated and you need put a bit more in.
This "4psi rule" is quite widely used (have a look on Google). It's also in the owners handbook for my Burstner caravan. You can also use the "rule" to check whether your car tyres are correctly inflated too.
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Topic: Increasing tyre pressures
