Seems as though the 2.0 is leaking oil from the filter housing assembly. I purchased a new filter housing assembly from ECS and was wondering if the thermostat assembly should be replaced at same time? I understand that it will save the labor to do it at the same time as the housing. Or should I go with if it ain't broke dont fix it theory. The car has 82,000 miles.
Thanks

 

I would think if it isn't broke then leave it be. Might be a good time to change the thermostat though.