Drivers across Greece are being urged by fuel station operators to switch from regular unleaded (95-octane) gasoline to the more expensive 100-octane variant—a shift that could cost consumers significantly amid an escalating energy crisis. As of yesterday, the national average price for regular unleaded gasoline and diesel has climbed above €2 per litre. Meanwhile, 100-octane unleaded has reached as high as €2.30 per litre at some stations.
A Costly Switch
The difference in price translates to roughly €15 extra per full tank refill—though the exact amount varies depending on vehicle type and engine size. While 100-octane fuel is more profitable for station owners, specialists note it does offer certain benefits for drivers, including improved engine performance and smoother operation—particularly in high-compression or turbocharged engines.
Regional Price Gaps Widen
Nationally, the average price for 100-octane unleaded stood at €2.229 per litre yesterday. But regional disparities are pronounced: in the Cyclades, it hit €2.285/litre (compared with €2.089 for regular unleaded), while in the Dodecanese, prices reached €2.283/litre (versus €2.094 for standard unleaded).
Not Always Necessary
While many drivers have heard claims from station attendants about the ‘superior quality’ of 100-octane fuel over standard 95-octane, the reality is more nuanced. Although consistent use of higher-octane fuel can enhance performance in certain vehicles, the vast majority of cars on Greek roads are designed to run efficiently—and safely—on 95-octane gasoline. In fact, using regular unleaded poses no risk to engine health, provided the fuel is purchased from a reputable, trustworthy station that doesn’t adulterate its products.
Stay Informed, Not Pressured
In today’s volatile fuel market—where prices are surging rapidly—consumers should be aware of what they’re paying for. Choosing 95- or 98-octane unleaded remains both safe and economical for most drivers. There’s no technical justification for switching to 100-octane unless explicitly recommended by the vehicle manufacturer.