Recently I began smelling burnt oil whenever I ran my car for an extended period of time. I then began to notice oil on the airflow tube (part of the breather tube assembly) where it connects to the air intake. Does anyone know the cause of this and, if so, the possible fix?

2000 Honda Accord Coupe LX - No engine mods.

Thank you.

 

You could try replacing/cleaning out your PVC valve and hose to make sure that there is enough vacuum from the intake manifold. The oil could be being forced out the intake breather tube if there is insufficient vacuum/a clog in the PVC connection.

 

Thanks. I'll try that and see how it goes.

 

Its either what Ghost accord said, or you have abnormal crankcase pressure from worn piston rings that are allowing blow-by gasses to force excess oil/oil vapor into your intake tract.

Check the pcv, if that doesn't work, do a pressure check on all cylinders.

sohc