- Joined
- Nov 20, 2024
- Messages
- 6
Howdy, I have a Donaldson P502503 and I have had several of them come with this inside of them. It looks to be like a black sticky substance on the bottom of the filter, I usually return them and make them give me new ones and I pick the ones that don’t have this. Is this normal? Would yall put this on your engine?