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Message: <blockquote data-quote="trekrok" data-source="post: 4391675" data-attributes="member: 6668">Obviously the oil pressure is higher on cold engine/oil vs warm. Cold weather viscosity and tolerances are what we're talking about here.  My point is that the antifreeze has nothing to do with actually heating the engine to operating temp. It will prevent the engine from exceeding operating temp as part of a functioning cooling system, but thats it. I don't think antifreeze temp has anything to do with how hard a cold start is on a motor.</blockquote>