My 2.5 diesal omega has done 143k, i've got the service history on it. On my next service i'am contamplating using an engine flush, but have been told this could do more harm than good. Any views please !!
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Some say this can dislodge deposits which can then block oilways. Removing the deposits is the aim though. The most important action to prevent deposit buildup is regular oil changes. Nevertheless I believe in using a flush occasionally (say every 3rd or 4th change).
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