RV FEATURE
 6 . HEAVY-DUTY RADIATOR
 While cooling systems of modern vehicles are usually very efficient and cope well with the additional heat they need to dissipate when towing , older vehicles often don ’ t fare too well .
 Either their radiators become blocked with corrosion over time , or they never had adequate capacity in the first place .
 A refresh with standard replacement cooling system parts is a very good idea for older tow vehicles but a larger , heavy-duty radiator is a sensible – sometimes vital – improvement for such vehicles .
 7 . TOUGHER TYRES
 While not strictly a towing modification , all-terrain tyres are very good improvements when you ’ re driving for thousands of kilometres in the bush .
 All-terrain tyres for a 4WD may seem like overkill when you only plan to stick to the major highways . That is , until you change your mind , or hear of a great camp spot you want to visit down a dirt track .
 Punctures happen all too easily on such surfaces , and so all-terrain tyres ( preferably in the stronger Light Truck construction ) can make the difference between an event-free tour and one beleaguered with tyre changing by the side of the road .
 8 . BULLBAR
 You might think it won ’ t happen to you , but wildlife strikes are fairly common in the bush . While avoiding driving when wildlife likes to come out and play ( at dawn or dusk ) does help , it isn ’ t always possible and even then you might find a random roo bounding across your path well into the day .
 All-terrain tyres
 Radiator upgrade
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