oil leak after using castrol high mileage oil?? Coincidence??

[j cAT]

Originally Posted by mno221

I got a oil (engine) leak that running down the drive side of my transmission, my oil pressure drop had down below 30, i did a oil/filter change and later that day i notice oil on the driveway, i've lost almost a 1/2 gt, I've search but cant seem to find where it coming from. anybody had that problem.

remove the oil filter and check the gasket

[mno221]

I've check it already, there is no oil around the filter and drain plug, the oil is coming from the top running down the transmission. I've tired searching with a mirror but cant see where it coming from. Could it be the rear main seal.