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Old 07-27-2013, 05:09 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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Originally Posted by shawnu View Post
I use Mobil1 full syn and Mopar filters.

If I'm correct because I'm not knowledgeable about 2500 hemi, would the heavier oil be because its an HD truck and would be put more strain on it hauling heavier loads, or should the half ton REALLY use 5w30 too but can't because the MDS so they settle for 5w20. Just a thought that's crossed my mind before.
I am curious if you noticed any differences with full syn?? Mileage improvements>cold starts?

Sometimes we have -40C where I live and in my old trucks, always on dino, they ground pretty good starting up.....
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