Many fuel station operators across Greece are urging drivers to switch from regular unleaded (95-octane) petrol to the more expensive 100-octane variant—often claiming it’s the only option available. But in the midst of an energy crisis marked by soaring fuel prices, this tactic can significantly inflate drivers’ costs.
Fuel prices cross the €2/litre threshold
As of yesterday, the national average price for regular unleaded petrol and diesel has risen above €2 per litre. Meanwhile, 100-octane unleaded—marketed as a premium product—is now priced at up to €2.30 per litre at some stations. That difference adds up: filling a typical car tank can cost around €15 more with 100-octane fuel, though the exact amount varies depending on vehicle type and engine size.
A win-win? Not quite
While 100-octane fuel does offer certain performance benefits—especially for high-compression or turbocharged engines—it’s not necessary for most vehicles on Greek roads. Experts confirm that consistent use of 100-octane petrol can improve engine responsiveness and efficiency in compatible cars. However, the vast majority of modern gasoline-powered vehicles—including many newer models—are designed and certified to run safely and efficiently on 95-octane fuel.
Regional price disparities widen
Nationwide, the average price for 100-octane unleaded stood at €2.229 per litre as of yesterday. Prices were even higher in island regions: in the Cyclades, it reached €2.285/litre (compared to €2.089 for regular unleaded), and in the Dodecanese, €2.283/litre (versus €2.094 for regular).
What drivers should know
Consumers should remain cautious—not just about rising prices, but also about misleading claims of scarcity. There is no widespread shortage of regular unleaded fuel. Choosing 95- or even 98-octane petrol poses no risk to most car engines, provided the fuel is purchased from reputable, trustworthy stations that adhere to quality standards. In today’s volatile market, awareness—and informed choice—is key.