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Old 07-27-2013, 04:06 PM
CanuckShooter CanuckShooter is offline
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Join Date: Jul 2013
Location: Giscome, British Columbia
Posts: 52
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Vehicle: 2013 Ram
Trim Level: sport
Color: red
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
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Default 5.7L oil change questions.

Hi, I just noticed the oil change gauge in my brand new 5.7L Sport 1500 says it needs 1200KM ??

So I open the manuals and read there is a special oil in there from the factory, but it doesn't say to change it out any faster than usual???

Then I turn to the pages that tell you what type and viscosity oil to use...and more confusion. 5.7l 1500 it says use 5-20, 5.7l 2500 it says use 5-30???

So here are the questions I could use some help with.

>what is the proper time to change out that 'special' oil from the factory?

>why would there be a difference in recommended viscosity between a 1500/2500 with the same motor???

>has anyone that has switched to full synthetic oil noticed any mileage improvements?? I'm leaning towards synthetic due to the extreme cold temps we get here in the winter. [easier starts]

Thanks for any help you can provide. :-)
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