What’s in your tank?


Since 2008 fuel in the UK has been changing due to government legislation. This has seen the emergence of Bio-fuels in everyday road transport fuel. In Diesel we have seen the introduction of B7 diesel and in unleaded fuel the standard is E10 Petrol.

So what does this mean?
The essence of it is very simple:

  • B7 means 7% bio-diesel is mixed in with regular diesel.
  • E10 means 10% bio-ethanol is mixed with regular unleaded.
  • Targets have been set to continue to increase these percentages, looking towards a 20% mix in future years.

Does THIS affect me as a driver?
It is very early days, but there have been several recent articles on the web and in the press to suggest it may:

New E10 Petrol ‘Reduces Fuel Efficiency’ (source: Sky News 6 February 2014)

  • What Car? magazine performed what it said was the first “real world” test outside of laboratory conditions on the new E10 fuel, which contains 10% bio-ethanol.
  • It found significant fuel efficiency drops in four different types of engines, compared to similar cars running on unblended petrol.

“Diesel biofuel content suspected cause of unexpected winter breakdowns” (source: www.rac.co.uk 12 Dec 2013 at 10:03)

  • The RAC is working with the fuel industry and motor manufacturers to help find the root cause of the issue which results in diesel fuel filters becoming blocked by the formation of a gel-like substance in the diesel. This can block the fuel filter, thus starving the engine of fuel and may result in the engine not starting or in a loss of power. The amber engine malfunction indicator light might also show.
  • Whilst the primary cause of the issue is still under investigation, one of the areas receiving closest scrutiny is the up to 7% biofuel content which by EU law has to be added to all road diesel.

Modern day Fuel System – Cleaner for a modern day fuel
Prevention is better than cure, which is why we recommend an Advanced Fuel System Cleaner –

  • Recommended alongside every annual service and MOT to DETOX your car
  • Regular use of the Advanced Fuel System Cleaner will –
    • Help lower exhaust emissions
    • Help improve fuel consumption
    • Help improve reliability and engine performance
    • Help restore the fuel system to optimum condition
    • Help remove moisture from the fuel tank (that causes bacterial contamination to grow in fuel).