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Mixing E10 and premium gasoline – this is possible in principle. With newer cars, you can definitely fill up with the cheaper Super E10, mix it with Super E5, or alternate between the two.
Mixing E10 and premium gasoline – is it possible?
Until 2011, German gas stations only offered classic premium gasoline alongside diesel and a few significantly more expensive specialty fuels such as Super Plus. Premium gasoline has an octane rating of 95 and is therefore often referred to as Super 95 or, in other countries, ROZ 95.
- Regular premium gasoline is also labeled E5. E5 contains a total of 5 percent ethanol. E10, on the other hand, contains 10 percent bioethanol.
- The difference between E10 and premium (E5) is therefore only the higher ethanol content. If you mix E10 and E5, the gasoline in your tank will have an ethanol concentration of between 5 and 10 percent.
- In short: if your car is compatible with E10, mixing the two fuels is not a problem.
Filling up with Super E10 or E5 – when is it worth it?
If your car was built in 2012 or later, its modern gasoline engine can easily handle a mixture of E5 and E10, provided that the vehicle is approved for E10.
- However, many significantly older cars can also tolerate the new fuel. Here you will find a list of all E10-compatible cars. Alternatively, you can find information on the compatibility of E10 for older vehicles online from manufacturers or in workshops.
- Important: Older vehicles or models that are not approved for E10 should continue to use only E5, as E10 can cause damage to the engine or fuel system in these cases.
- Although E10 is usually around six cents cheaper than E5, most German drivers continue to fill up with classic premium gasoline.
- The higher ethanol content makes E10 more environmentally friendly, but it also means that the calorific value is slightly lower. This means that slightly more fuel is required for the same performance.
- The slight increase in consumption pays off as soon as the price difference reaches 3 cents. From a difference of 3 cents, E10 is cheaper to drive than E5.
- Please note: Frequent switching between E5 and E10 can cause minimal fluctuations in engine performance and a slight increase in fuel consumption, as E10 has a lower energy content. However, for most drivers, this difference is hardly noticeable.
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