Anyone want to take a stab at where this leak might be? Only visible in that one spot from underneath but its bone dry from up top. 88k miles but timing belt was done at 64k miles at the Lexus dealer. They did the water pump, thermostat, valve cover gaskets, oil pan gasket, and timing belt but no idea if they did cam and crank seals.

Pic before I cleaned anything off..



Then I cleaned everything off and drove around for awhile then inspected it again to find this very small pool of oil. I dumped in a bottle of Liqui Moly Oil Saver with the fresh oil change which is suppose to help rubber seals and gaskets expand but it takes around 400 miles to see the full effect. I hope this fixes it. I don't mind paying up for repairs but this was suppose to be a budget DD and RMS calls for 10-13 hours of labor




It's also wet in these areas but it doesn't look like fresh oil. Could be wet residue from the old debris and cleaning fluid.



Any insight would be GREATLY appreciated!!!

 

looks like main seal. grab a white paper towel and wipe some affected areas. if its reddish tint. main seal on the trans. brown. main seal on the motor.

cam seals are near the tbelt. crank seals are more than likely not done or 1 side is inspected and not the other. main seal is considered a crank seal also. but its on the side of where the trans is

 

Seems, crankshaft rear oil seal, engine oil leaks. Trans oil looks like blood.
When you will change it, it's expensive service only for the cheap rubber seal, don't forget to change the torque converter seal (front oil pump) and drive shafts seals at the both holes of the gearbox. So easy work when the gearbox is took off.
Wow, no rust at the downpipe. nice)