New Fuel Labeling at Gas Stations Starting July 1: Which Fuel to Choose Among E5, E10, or B7

Starting July 1, Ukrainian gas stations will begin using a new European fuel labeling system. Drivers will increasingly see labels such as E5, E10, B7, B10, or XTL instead of the usual markers. To avoid mistakes when refueling, it is important to know which fuel is suitable for your vehicle. This is reported by Visit Ukraine.

New Fuel Labeling at Gas Stations Starting July 1: What E5, E10, B7 and B10 Mean

The new system meets European standards and indicates the maximum content of bio-components in fuel instead of the octane number.

The labels will look like this:

• E5 and E10 - gasoline with a bioethanol content of up to 5% and 10% respectively;

• B7 and B10 - diesel fuel with a biodiesel share of up to 7% and 10%;

• XTL - synthetic diesel fuel.

Experts recommend checking the information under the fuel tank lid before refueling. In most vehicles, the manufacturer has already indicated which fuel can be used without risk to the engine.

Which Fuel to Choose Depending on the Car's Year of Manufacture

For gasoline cars, the recommendations depend on the age of the vehicle.

• Cars manufactured after 2011 are generally compatible with E5 and E10, but it is advisable to follow the manufacturer's recommendations.

• Vehicles from 2000 to 2011 are mainly designed for E5.

• Models from the 1990s also recommend fueling with E5, as a higher ethanol content may accelerate wear and tear on the fuel system.

For diesel cars, the most versatile option remains B7.

Cars from the 1990s and 2000-2011 are recommended to use this type of diesel fuel. Models manufactured after 2011 can often run on B10, but only if expressly permitted by the manufacturer.

Experts emphasize that even for modern diesel cars, B7 remains the safest and most common standard. It is not advisable to transition to B10 without the manufacturer's recommendations.