When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Just recently started to notice a single drop of dark fluid on the ground after the car sits for a few days. 2 oil pan bolt heads on the passenger side around the trans cooler lines have drops of fluid sitting on them but I don't see any streaks anywhere. Front crank seal was replaced just a few months ago. Engine oil level is good. I was able to tighten the coupler on the forward trans cooler line, but couldn't reach the back one. They look a little wet around the couplers.
I have no idea what I'm looking at or what I'm looking for.
Last edited by 06BlackCherry; Apr 27, 2025 at 10:27 PM.
It could be the oil pan gasket. Before getting into that fairly involved job, check the side bolts that go from the block into the main bearing caps. I've circled one in your picture. I had one of these loosen up on the driver side and cause an oil leak only when up to full oil temp. I chased it for a while thinking it was the oil pan gasket before I found it was the side main cap bolt.
Where is this fluid coming from?
