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A number of road users have reported receiving around 4mpg less with the new petrol in a major concern. Lower miles per gallon rates will lead drivers to top-up more regularly and spend more money at petrol stations.
HalfBarcaHalfBiscuit warned the new charge was simply a green levy on motorists”.
They said: “Found myself having to fill up with that E10 petrol the other day.
“As I expected from reading what had changed, it amounts to another green levy on motorists. At least five percent fewer mpg.
Davy at @Davycatchalot, revealed he had seen “quite a drop” in efficiency since the new changes.
Analysis based on average values suggested fuel economy could be reduced by between one and two percent.
This was down to the lower energy density of ethanol compared with fossil fuel petrol.
However, the DfT warned the impact of MPG will vary depending on driving style and refinements in fuel blends.
The Government previously claimed E10 fuel would “slightly reduce fuel economy”.
But they said it was “unlikely to be noticeable in everyday driving”.
The AA also confirmed E10 petrol would slightly reduce the fuel economy of vehicles.
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