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Showing results for tags 'evil diesel fuel query'.
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Read many threads, and visited several fora as research, but can't get a straight answer (big surprise). Still - here goes: Should I fill my F10 520d with a premium/supah diesel in order to clean the injectors/DPF/boost responsiveness/improve MPG - or are any gains purely fictional, or subjective, or plain old cobblers? I currently fill up anywhere - and use regular dead dinosaur juice. Thoughts? Petrol engine owners: verboten! Doc T