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post #17 of (permalink) Old 26th February 2007
Technical Supremo

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engine oil

Yeh I would tend to agree - most people think engine oil is only for lubrication, it has other important functions - namely it cools moving parts, cleans and take most of the gunge to the oil filter - dirty oil contaminated with burnt carbon is a very poor conductor of heat and dirty oil definitely will not be very good a cleaning. Thats why I belive it folly to change engine oil without changing the oil filter - it s like putting clean water into a dirty bath and then expecting to be clean when you get out. Additionally modern synthetic oils have better cooling and lubricating properties. Money well spent I say! Happy motoring!!
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