what may cause the engine oil to clogg?
The engine iol in my saab 9-5 is clogging up and it is caing me a great deal of concern, the car is still driving well after i added engine oil to it. Please advise me of what is causing this to happen and what could be the relative cost eg roughly how much it might cost.
What do you mean by clogging? How can you ? Do you mean you can see sludge when you pulled the valve covers?
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