"The ‘real’ mpg, garnered from numerous real world experiences of people with the same car, is quoted as 33.2mpg. We were astonished to find on returning to the UK that our little heavily-laden car had managed a combined figure of 42.2mpg. And that included a fairly spirited dashback to the ferry on the last day along Germany’s famous Autobahns!

This means we had a 27% increase in range, resulting in a saving of approximately 100 litres, or 160 Euros-worth of fuel.

A system that reduces fuel consumption, emissions,and the carbonisation of engines and oil, and that can be retrofitted even to a car as old as the one we drove around Europe, has to be the way forward for all combustion engines, old and new."

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