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CT5-V 2025 CT5 Blackwings - have your dealer check oil plug on the front of the engine (Service Bulletin attached)

CT5-V Model
weld it up. carefully.
Weld steel to aluminum? That would quite the feat.

This is a low pressure part of the oiling system (unless there is excessive combustion blow by, but that would be a worse issue).

A press fit, when done properly, should be sufficient.

The original press process wasn’t done properly.
 
Give it enough time, its going to weld itself together.
 

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