Ever-evolving emissions rules have resulted in several significant shifts in car design, although this is far from a new phenomenon. Regulators have been looking for ways to make cars more ...

The Freelander 1’s BMW-sourced four-cylinder Td4 diesel engine is a simple motor to service yourself, as we saw in our service guide last month. In many ways, the top-mounted oil filter and the easily ...

Venting a typical V-8 engine isn't a complex affair. A breather atop each valve cover is usually all that's needed. Of course, replacing one with a PCV valve to introduce a bit of vacuum into the ...

Positive crankcase ventilation (PCV) systems have several tasks. The first is to prevent pressure building in the crankcase due to combustion pressure blow-by – the gas that leaks past the piston ...

Walker Engineering’s new Spinbreather is designed for classic Volvo Penta marine diesels from the late 1970s, ’80s and ’90s that use an open breather. The new high-performance open breather replaces ...