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Matt, Mechanical Engineer
Category: Car
Satisfied Customers: 22913
Experience:  BEng hons Mech engineering, in auto industry 22 years
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Diesel getting into engine oil

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diesel getting into engine oil


if you have a lot of fuel in the oil then its possible that one or more of the injectors is leaking or dribbling fuel into the cylinders

so it would be worthwhile trying a bottle of injector cleaner into the tank as a first step and if that doens't help then consider removing the injectors and having them ultrasonically cleaned and flow tested

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