Focus Fanatics - View Single Post - anyone using premium gas ?
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Old 02-04-2013, 01:58 PM   #48
thejordan
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Join Date: Dec 2012
Fan#: 107706
Location: Southern, CA
What I Drive: 2013 SGM Focus 5 Speed

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Quote:
Originally Posted by TORQUERULES View Post
Guys look in your manual in the section on fueling your car and what type of fuel to run, you will see a sentence in there that states that that premium fuel gains improved performance.

Ford has had adaptive fuel strategies in their cars for years now, they just do not advertise it. Many of their engines gain significant horsepower from premium fuel. The ECU allows more timing, etc.

I remember that Mazda on the CX9 (which is a 3 row Edge with the 3.7 liter engine instead of the 3.5) actually advertised that horsepower went from 273 to I believe 298 with premium fuel (the CX9 uses the non-Ti-VCT version of Ford's 3.7).
I believe that you get some performance gains (a few hp). But no one has posted any data of MPG improvements. And no one has calculated the cost differences between MPGs that they claim to gain and difference in price.
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