It's only worth it if you are running straight water or very little coolant. It doesn't make a huge difference if you're running a 50/50 mix.
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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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