Oil leak common for 2019 Denali

[optimusprime]

Looked at a 2019 Xl Denali today. Its got 87k on the clock with one owner. Everything looks clean in the engine compartment and underneath except one are where the oil seems to be weeping at the inspection port near the rear main seal and near the oil pan. Not a big drip but there is definitely oil seeping from that area. Small oil spot underneath as well the size of a silver dollar. Is this normal for this year and mileage? Mine does this but it’s an 08 with 202k on the clock.

 

[Joseph Garcia]

In all likelihood, the rear main seal may be leaking. I can't say for sure that this is normal for that mileage, but it would be good to take a flashlight and take a look into the inspection port. Changing the rear main seal is not cheap, due to the labor involved, but it should not preclude a purchasing decision, if the rest of the truck checks out OK.