We plan on towing a light caravan to Darwin and back using our Toyota RAV4 V6. The van has a tare weight of 800 kg. Should we fit an extra transmission cooler?
The RAV4 V6 is rated to tow 1900 kg with trailer brakes or 750 kg without brakes, so your caravan should have brakes if you want to tow it with the RAV4. You need to be conscious of the total weight of the van, not just the tare weight, but if the tare weight is just 800 kg as you say, the total weight is probably going to be within the total weight the RAV4 will haul. I wouldn’t fit an extra cooler for the trip you plan to make.