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Old 03-07-2011, 04:23 PM
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charlieb charlieb is offline
Dodge Ram Forum Senior Member
Join Date: Feb 2011
Location: hamilton on canada
Age: 45
Posts: 273
Gender: Male
Vehicle: 2004 dodge ram 1500
Trim Level: slt
Color: black
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
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charlieb is on a distinguished road

using 5w-30 oil instead of 5w-20 means u would be using a thicker oil which is probly ok in the hottest months but if it gets a little colder that thicker oil doesnt travel thru the smaller oil ports as easily.ur truck is under warranty so that might be a big mistake if something where to happen and they thought you warnt using right grades at right intervalls.
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