The UK saw the launch of the new E10 petrol back in September.
It is blended with up to 10% renewable ethanol and made up of materials to make it greener than existing petrol.
With the rollout, the new petrol is expected to cut transport CO2 emissions by 750,000 tonnes per year.
Since the release, drivers reacted to the rollout as motorists raged over car problems.
But now months on since it was launched in the UK, it seems drivers still can't get their heads around the change.
Car owners have since shared their frustration in their hundreds, reports the Express.
One driver said: "My fuel consumption is up 12%, cold starting is a real pain, and the engine is knocking on my 2009 Renault.
"Back to E5 and all problems gone, except I am being ripped off at £1.70 a litre.
"Whole thing is a revenue raising exercise and nothing to do with pollution as E10 fails completely in that respect."
Since the introduction of E10 in the UK, users have been annoyed by the cost of the fuel.
The Department for Transport's Introducing E10 petrol study confirmed drivers would experience lower fuel economy.
It confirmed fuel economy may drop by up to 2% using the new compound.
Aside from the high cost of E10, drivers are still upset at the lower miles per gallon achieved after filling up with the petrol.
One said: "I do notice a decrease in mpg of between 8 and 12% since first buying the UK version of E10 back in August."
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Experts have also warned the fuel could have damaging effects on engines.
An expert recently told the publication he was consistently having to flag up engine faults that used E10.
Eric Collins, of Classic Car Mechanic Limited, said: "Even more modern cars we suspect are having problems with that fuel.
"It seems to be okay if you put the more expensive fuel in, the E5. But when it's using the E10 [it isn't]."
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