If you read some of the reviews for the aftermarket pentastar oil filter/cooler assemblies, you'll see reports of O-rings not being the right size, sensors snapping right off of them, etc. Then again, could these problems be 1 out of 1000? Who knows.
As much as I love pentastars, this is the only thing I hate about them. This stupid plastic oil cooler/filter assembly buried under the intake manifold. ALL of them will leak eventually. Either by O-ring or cracking.
I didn't think it would cost over $1000 for a dealer to fix it. I figured more like $400-500.
The job doesn't look difficult. For me the worst part would be reaching the damn engine. You about need scaffolding, one of those $$$ lay on creepers, or take the front wheels off and drop the front way down on stands, blocks, etc.
Also.. 'while they're in there'. If the vehicle is 4-5yrs old. May as well have them change the spark plugs.