I seem to have a slow oil leak coming from somewhere around the top front of the engine. I noticed a couple of small drips after about a thirty - forty mile run. Could this be the oil cooler? I don't drive it much but when I do, it drives great. Coolant seems to be OK and gauges don't indicate any issue. I'm planning a SC removal (coupler) soon but haven't seen any mention of oil pipes or hardware up around the front of these engines. thoughts?

 

It could be the vacuum pump seal. Its located on the lower front part of the motor. But your leak is at the top.. Its a common problem but it a simple fix. I replaced mine when i did an oil change.

 

Maybe the VVT (variable valve timing) solenoid on one or both valve covers.