Oil Is Cheaper Than Metal – Why It’s Important To Change Fluids

A phrase I learned some 20 years from one of my mentors, Bruce Ryder, was "oil is cheaper than metal". Sounds simple, even trite perhaps, but the point is right on, its less expensive to replace fluids, than replace engine parts. The photos are of a classic Mercedes SL being serviced in our workshop. The engine, M104 24-valve 3.0 inline-6 with relativity low miles, has suffered a catastrophic cylinder head gasket failure. You can see from the photos how the clear gasket failure, allowing compression to leak into the cooling system, and preventing the engine from running. Head gaskets rarely fail [...]