Crystal Clear Restoration on Instagram: "Failure to perform ALL recommended services involved WILL result in permanent engine damage. One of the most overlooked areas of maintenance is the crankcase ventilation system. When properly functioning it allows the engine to breathe, expel excess crankcase pressure, while separating oil vapors from the ventilated pressure. When this system becomes clogged at approximately 50,000 miles it will need to be changed along with the oil, filter, spark plugs,

The Positive Crankcase Ventilation (PCV) System in an Aston Martin DB9 – and what Sucks about it!