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Isuzu D-Max: Do I need to change my coolant?

Asked by Les Haughton

My 3.0-litre Isuzu turbo diesel has done 125,000 km. It has always been serviced by book, and runs faultlessly, but the coolant looks scummy and smells a little like diesel. Does the coolant go off, or is it possible for diesel to get into cooling system?

Answered by CarsGuide

6 Jan 2011 Carsguide.com.au

Coolant should be changed regularly, annually at least, but the interval should be shown in your service book. It can look a little oily, but that's not a problem, and as your vehicle is running well with no sign of a problem I wouldn't be concerned, but do change the coolant.

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