CheCk and Change the Coolant

Classic Car Weekly (UK) - - Fuzz Townshend’s Top Tips -

Even though your clas­sic hasn’t done any work for a while, the coolant has likely been through some tem­per­a­ture ex­tremes. Coolant main­te­nance isn’t just about an­tifreeze con­tent – it’s as im­por­tant to keep coolant gal­leries free from rust and sludge. This is espe­cially the case with the higher-per­for­mance en­gines fit­ted into mod­ern clas­sic cars. There are few clas­sic en­gines which do not fea­ture un­like met­als in di­rect con­tact with the coolant and so mod­ern prepa­ra­tions in­clude cor­ro­sion in­hibitors to pre­vent elec­trolytic re­ac­tions. As for the an­tifreez­ing prop­er­ties, these are of­ten achieved by al­co­hol prepa­ra­tions that evap­o­rate, di­min­ish­ing low-tem­per­a­ture pro­tec­tion.

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