Quote:
Originally Posted by Yellow_Festiva
No, I don't think you understood what I meant. Use a cheaper oil as a flush while you are getting a service at the same time.
Put the car on the hoist, dump old oil, fill with cheap oil, get to temp then dump that before putting in whatever correct oil is specified.
SCA has Shell Helix HX5 15-40 on special for $14.88
Big W sells 5L of 20-50 for $15 normal price
Seen it cheaper still when there is a sale on.
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For an MC Mondeo running with appropriate oil changed at the appropriate interval I'd say there's something very wrong if a flush with cheap oil removes anything more than the dregs of the previous oil.