Used diesel cars for sale in Australia

Why choose a used diesel car?

Used diesel cars are the preferred choice for Australian drivers who tow, cover high highway kilometres, or need the low-end torque that diesel engines deliver. Diesel motors produce strong pulling power at low revs, which is why utes and SUVs built for towing are most often diesel, and diesel's better fuel economy per litre makes a real difference on long outback runs and regular highway commuting.

In city driving, a diesel car performs well too, though the gap over petrol narrows in stop-start conditions. Modern diesel engines include emissions systems — a diesel particulate filter (DPF) and, in most post-2015 models, an AdBlue (DEF) system — that are important to maintain. Short city trips that don't allow the engine to reach operating temperature can cause DPF issues over time, so diesel is best suited to drivers who also do regular highway driving to keep the engine in good health.

Diesel and petrol are distinct choices with different strengths, and the right pick depends on how you'll actually use the car. Our used petrol cars page covers the petrol alternative for buyers whose driving is mainly city and suburban. If financing your purchase makes sense, Carma's car finance options can help you plan ahead.

Popular used diesel cars at Carma

Toyota HiLux

The Toyota HiLux is Australia's best-selling vehicle and, in diesel form, one of the most capable and durable utes on the used market. The 2.8-litre four-cylinder turbodiesel delivers strong torque for towing — up to 3,500kg on compatible variants — and returns around 8.5L/100km in combined driving. Whether you need a single or dual cab for work or family use, the HiLux diesel is one of the most consistently in-demand used vehicles at Carma.

Volkswagen Amarok

The Volkswagen Amarok brings a more premium ute proposition to the diesel segment, with the V6 TDI engine offering substantial towing capacity and a more refined on-road experience than many ute alternatives. Available variants include both the 2.0-litre TDI and the 3.0-litre V6 TDI, the latter returning around 9.5L/100km at combined speeds. Current Amarok stock at Carma is limited — set up a stock alert to be notified when one arrives.

Volkswagen Tiguan

The Volkswagen Tiguan diesel is a popular choice for Australian families who mix highway and rural driving, pairing a 2.0-litre TDI engine with comfortable all-wheel drive capability. It returns around 6.5L/100km in combined driving which is genuinely efficient for a mid-size SUV and provides generous boot space and a well-appointed interior. It's a strong option for drivers who need SUV practicality with long-distance diesel economy.

Hyundai Tucson

The Hyundai Tucson diesel suits Australian families looking for a practical mid-size SUV with highway-oriented efficiency. The 2.0-litre CRDi turbodiesel returns around 6.5–7.0L/100km in combined driving and delivers smooth, relaxed performance at highway speeds. It's well-equipped across all grades, widely available in the used market, and carries a strong reputation among Australian owners for day-to-day durability.

What to look for when buying a used diesel car

The diesel particulate filter (DPF) is the most important system to check on any used diesel. A DPF that has been clogged by repeated short city trips can be expensive to rectify — always ask whether the car has been used primarily for highway or mixed driving, and check whether any DPF warning lights appear in the vehicle history.

When inspecting a used diesel car, work through this checklist:

• Diesel particulate filter (DPF): check for no warning lights and confirm the car has been driven regularly at highway speeds to allow proper regeneration
• AdBlue system: confirm the AdBlue reservoir is full and no SCR (selective catalytic reduction) fault codes are present; most post-2015 AU-market diesel cars require AdBlue
• Service history: confirm all services have been completed at the correct diesel-specific intervals; missed services increase injector and turbocharger wear risk
• Injectors: listen for rough idle, diesel knock, or uneven running; injector replacement is one of the more significant diesel repair costs
• Turbocharger: listen for any unusual whine or whistle and check for boost lag on acceleration; turbos in well-maintained diesels are long-lived
• Exhaust smoke: on a warm engine, blue smoke indicates oil burning; black smoke at acceleration may point to fuelling or DPF issues

Every car at Carma goes through an NRMA-verified inspection & reconditioning process, so key systems including the DPF and turbocharger are assessed before the listing goes live. Use Carma's compare feature to review diesel models side by side before deciding.

Frequently Asked questions

Is a used diesel car worth buying in Australia?

Yes — to buy a used diesel car in Australia is to get real advantages for towing, long-distance driving, and high-kilometre highway commuting. Diesel's low-down torque is well-suited to utes and SUVs, and its superior economy per litre pays dividends over long distances. For drivers whose use is primarily city and short trips, a petrol or hybrid alternative may be a better fit.

What is AdBlue and does my diesel car need it?

AdBlue is a diesel exhaust fluid (DEF) used in selective catalytic reduction (SCR) systems to reduce NOx emissions. Most Australian-market diesel cars manufactured from around 2015 onwards require it — including popular models like the HiLux, Amarok, Tiguan, and Tucson diesel. The AdBlue reservoir needs to be refilled periodically (roughly every 10,000–15,000km depending on use) and running out triggers a warning that will eventually prevent the engine from starting.

What should I check when buying a used diesel car?

Prioritise the DPF condition, AdBlue system status, full service history, injector condition, and turbocharger health. Ask specifically whether the car has been driven primarily on short city trips, which is the highest-risk use pattern for DPF health. If you'd like specific guidance on a model, [get in touch with us](https://carma.com.au/contact-us), we're happy to help.

Is diesel better for towing in Australia?

Yes, diesel is generally the preferred fuel type for towing in Australia. Diesel engines produce high torque at low revs — the kind of pulling power that makes sustained towing on Australian highways or unsealed roads manageable and fuel-efficient. Most utes and tow-capable SUVs are available in diesel variants for exactly this reason. Always confirm the specific towing capacity rating for the model and variant you're considering.

How much does a used diesel car cost to run in Australia?

Diesel's better fuel economy per litre (typically 6.5–9.5L/100km for SUVs and utes) can offset the higher diesel fuel cost at the pump, particularly for high-kilometre highway drivers. Servicing costs are broadly similar to petrol, though diesel-specific maintenance such as injectors, DPF, and AdBlue top-ups can add to the cost if not properly managed. A full service history is the most important indicator of expected running costs for any used diesel.

Browse our full range of second hand diesel cars for sale at Carma, all NRMA-verified, with transparent fixed pricing and no haggling. Ready to trade in your current car? Find out how to sell or trade in your car through Carma.