Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - anyone using premium gas ?
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Old 12-03-2011, 06:11 PM   #5
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Join Date: Jun 2011
Fan#: 86791
Location: Brandon, Canada
What I Drive: 2012 Blue Candy SE

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I have gone back and forth between grades (3 tanks reg, 3 tanks premium, s tanks reg, etc) and have actually noticed a mileage difference with the premium. Not huge by any means, 1-1.5 L/100km, but still a difference. I think that works out to 2-3 us mpg roughly.
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