E10 coming in 2021?

A new blend of standard regular unleaded containing 10% ethanol is being proposed by the Government as part of legislation designed to reduce carbon dioxide emissions and combat climate change. This type of fuel is widely recognised as being incompatible with older internal combustion engines, as it can degrade fuel pipes, leading to fuel leaks, as well as possible damage which can be caused by bioethanol’s corrosive properties which can lead to damaged seals, rubbers, plastics and metals within the engine.

The ethanol extracts the oils in rubber, causing rubber hoses and seals to become stiff and crack, and attracts moisture from the air, creating rust. Metal fuel lines and iron fuel tanks will corrode faster, especially if the vehicle is standing still for a long time, causing rust particles in the fuel filter and possible fuel leaks. The good news? Ethanol-free fuel is available in the UK (with the exception of Devon, Cornwall, the Teesside area and Scotland) with Esso’s premium Synergy Supreme +.