Really doesn't make too much of a difference. It's a little thicker cold, but they both end up at a 30wt warm. Next oil change send a little bit off to Blackstone Labs, get an oil analysis and ask them.
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2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent
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