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Old 08-25-2010, 10:04 PM
JRI JRI is offline
Dodge Ram Forum Senior Member
Join Date: May 2010
Location: Florida
Posts: 148
Gender: Male
Vehicle: 2010 Ram Crew Cab
Trim Level: Laramie
Color: Bright White
Engine: 2009-???? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
JRI is on a distinguished road

I tried both 87 and 89 and found no difference in mileage greater than 1MPG. I figure that is probably more a reflection of my foot on the pedal than octane rating since it can be + - from tank to tank.

Stock, no mods, and haven't towed yet but 87 is just fine for now.
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