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Message: <blockquote data-quote="Schwepps" data-source="post: 375939" data-attributes="member: 3592">Hahaha! A lesson on thermodynamics in an oil thread. Sorry for influencing this going OT! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick Out Tongue    :p" loading="lazy" data-shortname=":p" />No doubt, you can raise the boiling point of your cooling system by using more ethylene glycol coolant than water as the medium, but that has to go with an upgraded cooling system, among other mods, because the system will be running hotter and under pressure. But a stock system temp is set by the engine designers by having rated thermostats and temp sensors trigger the valves and pumps. What is the temp rating of the stock cars we are driving? Most thermostats these days are rated at 93C or thereabouts. What are BMW thermostats for the N46/N52  rated at? Does anyone know? <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite5" alt=":confused:" title="Confused    :confused:" loading="lazy" data-shortname=":confused:" /></blockquote>