Why does diesel still dominate the used market? Despite restrictions, regulations, and a reduction in new car supply, used diesel cars remain highly sought-after thanks to their low fuel consumption, longevity, and competitive running costs.
📋 Article Index
Updated on 08/19/2025 • Based on ACI, UNRAE and used car market observatory data
✅ Introduction
Despite traffic restrictions and the growing availability of hybrid and electric cars, diesel continues to dominate the used car market in Italy. Demand remains strong, especially among those who travel high mileage annually and are looking for a reliable vehicle with low running costs.
🌍 Regulatory context and new restrictions
Since 2025, several cities in the North have introduced restrictions on Euro 4 and Euro 5 diesel vehicles. However, not all regions apply the bans in the same way , and outside the most restrictive urban areas, diesel vehicles continue to circulate freely.
This creates a “two-speed” market: penalized in large centers, but very lively in provinces and rural areas.
⛽ Advantages in fuel consumption and high mileage
- Efficiency: Diesels consume up to 20–25% less fuel than petrol cars.
- Autonomy: long range (even 900–1,000 km on a full tank).
- Convenience: For those who travel at least 15,000–20,000 km/year, diesel remains the most logical choice.
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🔧 Durability and reliability of diesel engines
Diesel engines are known for their longevity . With regular maintenance, they can easily exceed 250,000–300,000 km without serious problems.
The more durable components (engine blocks, gearbox, injection) keep the interest of second-hand buyers high.
Read Also: Lambda Sensor and DPF Problems in Diesel Engines: What You Need to Know
💰 Impact on the second-hand market
- Stable prices: Diesel prices do not collapse as expected.
- High demand: especially from company fleets and private individuals who travel many kilometres.
- Scarce supply: New diesels are now in short supply, making used cars even more valuable.
🗺 Differences between Northern and Southern Italy
In Northern Italy, due to the lockdowns, reselling diesel vehicles is more difficult, with greater discounts. In Central and Southern Italy, however, diesel remains the dominant choice and often commands higher prices.
❓ Frequently Asked Questions
Can Euro 5 diesel vehicles still be driven?
Yes, in many regions until 2026 thanks to local extensions, but with limitations in the large urban centers of the North.
Is it worth buying a used diesel in 2025?
If you drive a lot of miles a year, yes. Diesels remain convenient in terms of fuel consumption and durability, especially outside restricted traffic zones.
What are the alternatives to diesel?
Hybrid and electric are growing, but for long distances, diesel is still more efficient.
📌 Conclusions
Diesel, despite regulatory limitations, continues to dominate the used car market thanks to its strengths: low fuel consumption, long life, and stable demand. It's still a valid choice for those traveling long distances and looking for a reliable, affordable car.
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