E10 Fuel Changes: Drivers May See “Rust” And “Corrosion” In Engine This Winter


As of September, E10 petrol has been the standard form of unleaded fuel in the UK since the E5 was reclassified as premium fuel. The E10 has been used worldwide for several years, especially in Europe, the United States and Australia.

It is also the benchmark fuel against which new cars have been tested for emissions and performance since 2016.

Despite this, some drivers have encountered issues with gasoline, citing issues with their engine and fuel efficiency.

The government has said that the introduction of the E10 will result in a slight decrease in fuel consumption, typically around 1%, although this is not visible to most drivers on regular trips.

Despite this, many have seen a reduction in fuel consumption, with some drivers potentially experiencing other fuel issues in the weeks and months to come.

READ MORE: Drivers Report E10 Fuel Problems As Cars ‘Drive Bad’

“On motorcycles you often have steel tanks, so corrosion is one of the biggest drawbacks.

“We are seeing a tendency with riders to turn more to additives, obviously depending on the E10, but with modern motorcycles the engines are becoming more and more sensitive.

“Older motorcycles are now coming to an age where they have deposits inside where they can cause problems.

“They are not perfect. The response to gas is a bit weaker and more and more drivers are realizing that additives are relatively cheap and can safely help with problems they have with their vehicles.

“They will also keep the vehicles in good technical condition.”

Although there are no statistics yet on its share of total gasoline consumption so far in the UK, E10 accounted for 14% of total consumption in Germany in 2020.

Standard E5 gasoline has a share of almost 81%, with an additional 5% from the premium gasoline share, according to the Federal Bioethanol Association of Germany.

Mr Kaiser went on to say, “The resolving properties of E10 are not as good as other gasolines, so the tendency for deposits to form in the engine is a bit higher.

“With an additive, you have no effect on the physical or chemical properties, but you have an influence on deposits and corrosion.

“I’m sure if someone looks in the fuel tank of their motorcycle after winter and sees rust on the inside, then they’ll use an additive.”

As temperatures continue to drop, more and more drivers are avoiding winter by taking out their vintage car or motorcycle.

In this case, thousands of drivers could end up with corrosion or deposits in their engines when they come to use their vehicle after winter.


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