I work at a GM dealership. If you ever have a hard to find oil leak pop up on the driver side most people diagnose it as a cam cover. Just note- they have a cam carrier between the cylinder head and cam cover. They are sealed with GM sealant not a gasket and they are known for leaking. And not very fun to change. Very very big job. I believe it was close to 20 hours book time. Cam cover comes off the Timing cover has to come off and if I remember correctly oil pan comes off. (Don’t take my word on that. I’m not 100% sure it’s been awhile.)timing chains have to come off. Then cams come out then the cam carrier under the cams.
Had those seals go bad on my 96 Dodge Intrepid 3.5 OHC V6, after over 150K miles. It was losing oil so fast you could put it in and watch it pour out the side of the engine a minute later. Took 6 quarts to get to Walmart, the closest place to the house to get more, and back home, which was like 5 miles.
Had it towed to a shop, mechanic said these engines are prone to this. $700 and 2 days later, had the car back. Right before Christmas too, guess what Santa brought? Don't think they had to pull the oil pan, but all 3 sections of the timing cover come off, and all the belt and tensioner parts. I had just done timing belt, tensioner and water pump like 6 weeks earlier (WP on these is driven by the TB so you replace them together. Also do not presume that the tensioner is good, just because it's still tight and springy and goes back together okay. It will break, and then your car stops dead in the street; and if you're lucky like we were, there's no engine damage. But you get to have it towed, and pay someone to redo the job you just did....
One of the few things I didn't like about that car.