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Does supermarket diesel contain 20% vegetable oil?

I’ve been told that some supermarket diesels contain up to 20 per cent vegetable oil, is this true?

Asked on 2 December 2013 by KEITH MURRAY

Answered by Honest John
That would be called E20. E10 (10 per cent) is common in the UK, but E20 is not here yet.
Tags: biofuels
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