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Is there a difference in cetane rating between Ultra Low Sulohar Fuel and ordinary unleaded petrol? I appear to get considerably less mpg with ULSF than standard unleaded.
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THE MINIMUM RESEARCH OCTANE RATING FOR PREMIUM UNLEADED IS 95.0. ORDINARY PREMIUM UNLEADED TENDED TO AVERAGE 95.1 - 95.2 RON, BUT SHELL WAS USUALLY 95.6 - 95.7 RON. I'M VERY INTERESTED IN OTHER READERS EXPERIENCES OF ULSP. IF EVERYONE IS SUFFERING A 10% DIVE IN ECONOMY, THEN THAT WIPES OUT ANY SAVING IN THE PRICE AND THE IMPLICATIONN IS THAT THE POORER BURN OF THE FUEL MAY WELL BE DAMAGING ENGINES.
HJ
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