Dirty oil damages the turbocharger by causing heavy scoring of critical bearing surfaces.

To avoid damage, oil and filters should be of a quality recomended by OEM. These should be changed when a new turbocharger is fitted and at regular intervals according to the vehicle/engine manufacturers specification.

	Dirty oil damage could result from:
	• Blocked, damaged or poor quality oil filter.
	• Dirt introduced during servicing.
	• Engine wear or manufacturing debris.
	• Malfunctioning oil filter by-pass valve.
	• Degraded lubrication oil.

	Optional Features
	Dirt scored shaft   Worksheet Dirt scored bearing