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Document Information

Location: Powertrain - Engine
Topic: Engine Oil Leak
Condition: Permanent / Intermittent
Diagnostic Trouble Codes: N/A

Measure
When attempting to identify an engine oil leak, the use of a leak trace product
which is mixed with the engine oil to help identify the source of the leak can
now be used.
An oil leak detection dye must be sourced locally, and the following guidelines
must be considered, along with the product manufacturer's guidelines:
•

Before adding the leak trace product to the engine, carry out an engine
oil level test and record the result

•

The engine oil must then be drained following the “Drain/Fill – Engine
Oil” segment of SIS and record the amount drained

•

Mix the used engine oil with the recommend volume of leak detection
dye as per the product guidelines. Note if the drained engine oil is unfit
to reuse, replace with new

•

Refill and set the level of the engine oil with the pre-mixed dye as per SIS
instruction

•

Start the engine and carry out a road test if necessary to ensure the leak
trace fluid is circulated adequately enough inside the engine to become
effective in tracing oil leaks

•

Use a suitable flashlight to carry out the oil leak inspection. An active leak
should be fluorescent and easily identifiable under the ultraviolet/blue
light

•

After the leak tracing investigation and any remedial work has been
completed, the leak trace dye can remain in the oil system unless the
product used specifies differently

Care Point: Please record which leak detection dye product was used on the
TR or Job Card.

Parts Information
N/A

Attachments
N/A

KA Update Information
24/11/2021 – First Release

This document is uncontrolled when printed. Before use, check the Knowledge Base
within the McLaren Retailer Portal to verify that this is the current version.