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Old 10-08-2009, 09:37 PM
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Dan Dan is offline
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Join Date: Sep 2009
Location: MD
Posts: 192
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Vehicle: 2009 Dodge Ram 1500
Trim Level: Laramie
Color: Inferno Red
Engine: 2009-2010 345ci (5.7L) Hemi V8 390hp 407lb/ft
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I was using 89 or premium (since sam's club doesn't carry midgrade) when I first got my truck. I switched to 87, and haven't noticed a difference in power or fuel economy.

Just ordered a predator though... haven't decided if I'm gonna use the 87 or the 93 tune yet. I'll probably try them both and see what happens.
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