Fuel and diesel stops Australia road trip planning for campervan self-drivers

Most hire campervans and motorhomes in Australia run on diesel, though some smaller campers may be petrol. A compact 2-berth diesel van might use around 10–12 L/100 km on highway runs; a larger 4–6 berth motorhome can sit closer to 14–20 L/100 km, especially into a headwind, with the air-con working and half your pantry packed in the overhead cupboards.

Tank sizes vary, but 70–90 litres is common. That gives a rough touring range of 450–750 km, not the heroic number someone once claimed on a forum after driving downhill with a tailwind. In remote Australia, plan on your practical range being 20% less than the brochure-style maths.

• Do: refuel when you are down to half a tank in the outback, especially before sunset or a public holiday.
• Don’t: assume the next dot on the map has fuel, card facilities, diesel, or opening hours that suit your day.
• Do: ask at vehicle handover what fuel type, tank size, AdBlue requirement and roadside assistance process applies to your specific van.

Australia is not short of fuel; it is short of convenient fuel. The Nullarbor has roadhouses, but Norseman to Ceduna is still about 1,200 km of big-sky driving where prices climb and mobile coverage falls over. On the Stuart Highway, Port Augusta to Coober Pedy is about 540 km, with Glendambo sitting in the middle as more than just a pie stop.

Up north, distances feel different because heat punishes tyres, engines and humans. Port Hedland to Broome is roughly 612 km, with Sandfire Roadhouse doing a lot of heavy lifting. Mount Isa to Tennant Creek is about 661 km across the Barkly, where the horizon looks empty enough to make you check the gauge twice.

• Do: build fuel stops into your route before you book campsites, not after.
• Don’t: leave a remote roadhouse on a quarter tank because “it’s only 250 km”. Wind, detours, closed bowsers and wrong turns all count.
• Do: keep a paper map or offline map loaded; fuel apps are useful, but they do not work magic without signal.

City diesel might sit around the high $1s to low $2s per litre depending on the week. Remote roadhouses can push much higher — $2.60 to over $3.00 per litre is not unheard of in very isolated country. That is not robbery so much as freight, generators, staffing and the small matter of keeping a pump alive hundreds of kilometres from a depot.

Roadhouses are also where you solve more than fuel. You may find drinking-water taps, basic groceries, takeaway coffee, tyre air, LPG swaps, toilets and sometimes a campground out the back. You may also find a handwritten sign saying the diesel bowser is down until the tanker arrives. Welcome to the inland.

• Do: top up water, empty rubbish responsibly and check tyre pressures when you stop for fuel.
• Don’t: block diesel bowsers while you wander inside for twenty minutes; caravans, trucks and station utes need that pump too.
• Do: carry a debit or credit card plus some cash for remote places with patchy EFTPOS.

Before you roll into the first servo, know your van. Diesel in a petrol tank, petrol in a diesel tank, or AdBlue in anything other than the AdBlue filler is a holiday-ending mistake. If you misfuel, do not start the engine. Move only if staff can safely help you push, then call the rental provider’s roadside assistance process.

If your camper has LPG for cooking or hot water, turn gas appliances off before refuelling and keep cylinder valves closed while driving unless your hire handover says otherwise. LPG bottle refills and swaps are common in towns but thin out in the back blocks, so do not wait until the last sausage is half-cooked.

• Do: check the filler cap label every time, especially if you swap drivers.
• Don’t: carry loose fuel containers inside the living area. Many hire agreements restrict jerry cans; fumes and bedding are a daft combination.
• Do: watch dashboard warnings for AdBlue on newer diesel vehicles; the van may limit restarting if it runs dry.

A fuel stop is often your safest place to reset. Road trains can be 53.5 metres long, throw buffeting air and need a lot more road than your motorhome. If one is overtaking you, hold your line and ease off slightly. If you are overtaking one, you need a long, clear view — not a brave thought and a short straight.

Heat changes the plan. Across inland WA, SA, NT and Queensland, summer road temperatures can push well beyond 40°C. Tyres run hotter, fridges work harder and people get silly faster. In the Top End wet season, roughly November to April, floodways can close roads quickly; driving through floodwater can void insurance and end very badly.

• Do: carry drinking water separate from your onboard tank — at least 4–5 litres per person per day in remote heat.
• Don’t: drive at dawn, dusk or night in kangaroo country unless you enjoy panel damage and paperwork.
• Do: check road-condition websites before dirt-road shortcuts; many 2WD hire campers are not permitted on unsealed roads except short campground access tracks.

The best fuel plan is boring. Boring means you have diesel, water, food, a legal camp for the night and enough daylight to park without reversing into a bollard while three grey nomads provide commentary from camp chairs.

Use this before any remote leg over 300 km, or before leaving a major centre such as Perth, Adelaide, Darwin, Alice Springs, Broome, Cairns or Mount Isa. It takes ten minutes and can save a very expensive recovery truck.

• Do: fill fuel, water and LPG before the long leg, not “somewhere after breakfast”.
• Do: download offline maps and save the next two fuel stops, not just the next one.
• Do: check your campsite rules: some free camps are 24-hour only, some require self-contained vehicles, and national parks usually require online booking.
• Don’t: rely on supermarket hours in small towns; Sundays and public holidays can be sparse.
• Don’t: park overnight at a servo or roadhouse unless it is clearly allowed or you have paid for the campground area.
• Don’t: ignore wind. A headwind across the Nullarbor can turn a neat fuel calculation into comedy.