Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - anyone using premium gas ?
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Old 02-04-2013, 09:17 PM   #49
Focus Rookie
Join Date: Jan 2013
Fan#: 108830
Location: Irvine, CA
What I Drive: Focus 2013

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Running 91 on my Focus. I see about a 1~2 mpg gain for my usual driving route when compared to 87. In Orange County, the price difference between 87 and 91 is usually between 14-20 cents a gallon, which makes it viable to pump 91 IMO
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