How much does premium diesel cost in Romania?

Premium diesel in Romania averages 0.30-0.40 RON/L more than standard diesel. At a standard diesel price of ~7.90 RON/L, premium runs ~8.20-8.30 RON/L.

What's the difference between standard and premium diesel?

Cetane number is the main technical difference: EN 590 standard requires minimum 51, premium reaches 53-55. Higher cetane = easier cold starts, more efficient combustion, less rough idle. Plus proprietary additive packages for injector cleaning and anti-foaming.

Is premium diesel worth it for an ordinary car?

For a standard car (Logan, Octavia, Skoda Superb diesel), the benefits are mostly cosmetic — quieter engine at 5°C in the morning, slightly faster start. Fuel economy gain is marginal (1-3% in ideal conditions). For long-haul transport fleets, cumulative benefits may justify the cost.

Does premium diesel reduce consumption?

Manufacturer studies cite 1-5% savings, but independent tests (TÜV, ADAC in Germany) show more modest figures — 1-3% on modern engines, negligible on older ones. For 50 L/month at 8 RON/L, monthly cumulative difference is ~5-15 RON, below the extra cost (15-20 RON/month). Math stays negative.

Premium diesel price in Romania

Complete guide to premium diesel in Romania: 53-55 cetane number, proprietary additive packages, price gap vs standard, when it's actually worth it. Indicative data updated 2026-05-11.

Today's premium diesel price

Romanian premium diesel averages 0.30–0.40 RON/L higher than standard diesel. With current standard at 9.72 RON/L, premium sells around 10.07 RON/L.

Premium diesel brands in Romania

Premium diesel variants by major network — 2026
Network	Premium brand	Min cetane	Distinguishing feature
OMV	OMV MaxxMotion Diesel	53	Injector cleaning + corrosion protection.
Petrom	Petrom Top Premium Diesel	53+	Higher cetane + anti-foaming additives.
Rompetrol	Rompetrol Efix Diesel	52	Proprietary lubricity formula reducing wear.
MOL	MOL Evo Plus Diesel	52	Reduced consumption and emissions focus.
Lukoil	Lukoil ECTO Diesel	53	Lukoil global standard, modern Euro 6 additive package.
SOCAR	SOCAR Premium Diesel	52	Standard premium variant.
Gazprom	—	—	Standard diesel only at most stations.

Cetane number — what it means in practice

Cetane number measures how quickly diesel auto-ignites after injection. EN 590 requires minimum 51. Premium diesel reaches 53-55. Practical differences:

Cold starting: premium ignites faster below 0°C — easier launch, less smoke at startup.
Smooth running: more stable combustion reduces "knocking" noise at idle and during acceleration.
Slightly higher efficiency: 1-3% consumption savings under optimal conditions.
Lower NOx emissions: more efficient combustion reduces particulates and NOx.

When is premium diesel worth it?

Cars that clearly benefit from premium diesel

Premium diesel cars: BMW xDrive, Mercedes 4MATIC, Audi quattro diesel, Porsche Cayenne Diesel, Range Rover
Trucks and coaches with high daily mileage (couriers, freight)
Tractors and agricultural equipment requiring high cetane for cold-start
Standby generators (premium diesel stores better long-term)

Cars where premium is marginal

Logan, Sandero, Duster diesel, Skoda Octavia 1.6 TDI — < 1% consumption benefit
VW Golf, Polo, Passat 1.6/2.0 TDI — marginal
Older trucks (pre-2015) — engine too unsophisticated to exploit higher cetane

Pragmatic calculation

For a standard car driving 20,000 km/year at 6 L/100 km consumption — that's 1,200 L diesel per year. The 0.35 RON/L price difference = 420 RON/year extra for premium. The 1-3% consumption savings = 12-36 L saved × ~7.90 RON/L = 95-285 RON/year savings.

Conclusion: at 1-2% real savings, premium diesel is a financial loss. At 3%+, it becomes break-even or slightly profitable. But 3% on modern engines is rare.

Winter diesel vs premium diesel

Don't confuse premium diesel with winter diesel. They're different:

Winter diesel is EN 590 standard with anti-freeze additives (CFPP -20°C instead of -10°C). All stations sell winter diesel November-March. No extra cost.
Premium diesel is a separate commercial category with higher cetane and proprietary additives. Available year-round. Costs 0.30-0.40 RON/L more.
Premium winter diesel = both combined. OMV calls it MaxxMotion Diesel Premium Winter; Petrom — Top Premium Diesel Winter. Marginally pricier in November-March.