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Old 01-27-2012, 06:15 PM
mpwallin mpwallin is offline
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Join Date: Jan 2012
Location: pa
Age: 37
Posts: 21
Gender: Male
Vehicle: 2012 ram express
Trim Level: express
Color: black
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
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I live in rural pa. Not much city driving but not highway at all. Mostly 2 lane clipping at 60,down hill one way and up back. 2010 with 4.7 got 17.5-18.5 consistently without trying. I realize the break in thing but how much does that really change. Would different octane help enough to justify price diff, never tried it in any other vehicle? Any help is appreciated.
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