What do MRO, MTPLM and User Payload mean?
MRO (formerly MIRO) stands for Mass in Running Order, this is effectively the weight of the caravan or motorhome as it leaves the factory with no additions e.g. gas bottles.
MTPLM stands for the Maximum Technical Permissible Laden Mass (pre-1998 this was known as MGW maximum gross weight) this is the maximum weight a leisure vehicle can weigh inclusive of the user payload.
User Payload: If you take the MTPLM minus the MRO this will give you your user payload. This is the maximum weight that can be put inside your leisure vehicle when towing it or driving it.
Can I increase the MTPLM of my caravan?
Weight plate upgrades are available on the majority of current models and are a cost option.
What cars are suitable for towing a particular caravan?
Your retailer can offer you advice on suitable towing vehicles at the time of placing your order, or alternatively, you can use the Towsafe website which has comprehensive information on the subject.
What, if any, special equipment is needed on my car by law, to tow a caravan?
There are a number of organisations that offer a wealth of information including:
- The NCC
- The Camping and Caravanning Club
How do I check if my caravan stability issues are related to my tow car?
The most common issue relating to the instability of a caravan while being towed is an incorrect nose weight for the outfit or the incorrect position of the vehicle towball.
On the assumption the vehicle nose weight is correct for the outfit, the vehicle towball height should be checked. The correct height of your vehicle towball is 350mm – 420mm vertical height from the ground, with the vehicle loaded, but without the caravan attached.
What is the correct tyre pressure for my vehicle?
The tyre pressure, for your vehicle, can be found in the Service, Warranty and Technical Data Manual which was supplied with your vehicle, you will find your quoted tyre pressure at the MTPLM.
How often should I change the tyres on my caravan?
The British Tyre Manufacturers’ Association advise that caravan tyres should ideally be replaced after 5 years of service and never used when more than 7 years old. However, tyres which are damaged or worn to the legal minimum tread depth must be replaced immediately. For more information download the Caravan and Motorhome Club’s guide.