So, how much to service a caravan before you roll?

Yes, scheduled mechanical servicing is normally handled by the hire operator, not the traveller. You still need to report faults promptly, check tyre pressures, use the correct fuel and stay within the road-use rules in your hire agreement.

Often, yes, because a caravan does not have an engine, gearbox or cooling system. But a tandem off-road caravan with brakes, batteries, solar, gas appliances and worn suspension can still cost plenty to inspect and repair properly.

On top of the quoted service, a contingency of $500-$1,000 is sensible for tyres, bearings, brakes, batteries or suspension parts. Remote breakdowns can cost far more once towing, accommodation and freight are involved.

If you're mechanically competent and have the right tools, some owners do bearings themselves. For a major trip, though, many self-drivers pay a workshop because a failed bearing at 100 km/h can damage the axle, wheel and holiday in one ugly afternoon.

Rules vary by state and situation, especially for sale, registration transfer or modification. Gas work itself must be done by a licensed gas fitter; don't DIY LPG lines, cooktops or hot-water systems in a van you sleep in.

Yes, at least inspect it carefully after serious corrugations. Check wheel nuts, tyres, suspension mounts, dust entry, wiring, plumbing clips, fridge vents and anything bolted to the drawbar before the next long sealed-road run.