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Oil leak. See pics

5.6K views 8 replies 5 participants last post by  desertboy13  
#1 ·
I have had a mystery oil leak for a few Months. At first I could see it on the inspection cover on trans. It wasn't much so I pushed it aside. I was underneath it tonight and there was quite a bit of oil. Now I can see it all over the area of oil pan and around filter. Filter is tight gasket is good. See attached pics. It looks like there is something above the oil filter that seems to be the origin of the leak maybe. What is this???
 

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#7 ·
I'm having the same leak area on my truck as well 2010 Chevy Silverado 1500 5.3. I think it is the oil cooler. 72435 if it is just one big hole in the gasket minus bolt holes, or if there is 2 holes about the size of the lines minus bolt holes the part number is 72462. I've talked to a couple ppl that said when changing that caller you'll lose very little oil but still have a drip pan to catch it. But my last oil change I noticed I had only 3 qts oil when changing it none spilled on the ground and got the oil from the filter as well. I know I'm not burning oil cause I don't smell any burning or see blue smoke. So I guess it's leaking as I'm driving down the highway cause I don't notice a big oil leak where I park my truck on my gravel driveway.