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Old 02-23-2009, 09:35 PM
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bsossamon bsossamon is offline
Dodge Ram Forum Newcomer
Join Date: Feb 2009
Location: North Carolina
Posts: 19
Gender: Male
Vehicle: 2005 Dodge Ram 1500 Thunder Rd
Trim Level: SLT
Color: Black
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
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Default 89 Octane

I mistakenly put 87 octane in my 05' Quad Cab Thunder Road. I noticed first that the truck was not pulling as hard. I secondly noticed teh MPG was lower with the 87 octane. I put 89 octane in my second fuel load, I definitely noticed a better MPG with the 89 octane. I wonder if i go up to premium if the 5.7l will like it better.
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