audisport

These don't go through, trying to decide if these are ok and part of the casting or not ok to run. Thoughts?

HenryPcar

Looks like there are scuff marks. The oil pan definitely took a hit, either on the road or someone tried to jack up the car a bit too aggressively when they change engine mounts. I would definitely replace them.

michaelmount123

If they don't go through, they're simply casting flaws and won't be a problem since the area is not stressed. The pan will be fine to run. If you're nervous, seal the flaws with Loctite 290.

audisport

I thought they might be, but I can feel a difference in level or catch across the lines that had me concerned.

V2Rocket

clean the pan and hit those marks with a flap-disc and see if they smooth down, or if they are in fact cracks that go deeper.

kev951

bake, weld, seal. done... otherwise replace.

gruhsy

Lots of ways to test to see if they are actually cracks.

Bright light on inside in dark room

Dye Penetrant

Fill it with clean water and see if it leaks

FYI I just went downstairs and looked at both my spare oil pans and they have casting marks that look exactly like what you have on your pan.