Mastering Caravan Tyre Pressure for Safe Travels

The importance of maintaining the correct tyre pressure on a caravan cannot be overstated. Properly inflated tyres are crucial for the safety, performance, and longevity of your caravan. Incorrect tyre pressure can lead to various problems, including reduced fuel efficiency, compromised handling, increased risk of accidents, uneven tyre wear, and potential tyre blowouts. Therefore, it is essential to regularly check and maintain the appropriate tyre pressure for your caravan.

Here are some steps to help you check and set the correct tyre pressure for your caravan, including the 4 PSI rule:

1. Consult the Manufacturer's Guidelines:

Start by referring to the owner's manual or the manufacturer's guidelines for your specific caravan model. These guidelines usually provide information about the recommended tyre size, load capacity, and the appropriate tyre pressure for different situations (such as towing or carrying heavier loads).

2. Invest in a Tyre Pressure Gauge: 

Purchase a reliable tyre pressure gauge. It's advisable to use a digital gauge as it provides accurate readings. Keep it in your caravan or tow vehicle to check the pressure whenever required.

3. Check Tyre Pressure when Cold:

Tyre pressure increases as the tyres heat up during driving. Therefore, it is essential to check the pressure when the tyres are cold. Ideally, check the pressure before starting your journey or when the caravan has been stationary for at least a few hours.

4. Locate the Recommended Pressure: 

On the sidewall of the tyre, you may find the maximum pressure rating, but this is not the recommended pressure for your caravan. Instead, look for a placard inside the caravan, usually located in the front tunnel, frame, or inside the main door. It should indicate the correct tyre pressure for your caravan.

5. Check Tyres when Hot:

Drive for a minimum of 30mins to let the tyres heat up and then stop and check your tyre pressure again.  Using the 4psi rule, if the tyre pressure increases 4 psi, the tyre pressure is correct.  However, if thr tyre pressure increases above 4psi, your starting pressure is too low.  Likewise, if the tyre pressure increases below 4psi, your starting pressure is too high

6. Inflate or Deflate as Needed: 

If the measured pressure is below the adjusted pressure (including the 4 PSI adjustment), use an air compressor to inflate the tyre to the appropriate pressure. If the pressure is too high, carefully deflate it using the valve's core or seek assistance at a service station.

7. Recheck the Pressure:

After adjusting the pressure, recheck it with the gauge to ensure it matches the adjusted pressure (including the 4 PSI adjustment).

8. Repeat Regularly:

Tyre pressure can decrease over time due to various factors, so make it a habit to check your caravan's tyre pressure regularly. A monthly check is generally recommended, and it's especially crucial before long trips or when carrying heavier loads.


By following these steps and maintaining the correct tyre pressure, including the 4 PSI rule, you can enhance the safety, handling, and fuel efficiency of your caravan while reducing the risk of accidents and premature tyre wear. Remember, proper tyre maintenance is a fundamental aspect of responsible caravan ownership.