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Fear not...those aren't cracks. They are the normal lines that develop during the casting process of aluminum. The casting molds aren't perfectly smooth and you just see the lines that develop.
The lines do not leak since they are only on the surface.

Rob
 

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Premium Member
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5,535 Posts
Going further though, you definitely have something leaking that appears to be motor oil.

As such, since it is still within powertrain coverage, I recommend a dealer trip for diagnosis and repair.

Rob
 
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