Every engine requires a certain amount of oil flow to keep the bearings, camshaft, valvetrain and other moving parts lubricated. Oil forms a barrier that prevents metal-to-metal contact and reduces friction and wear within the engine. In the bearings, it forms a wedge that actually lifts and supports the crankshaft and camshaft as they rotate.
New concept enables more accurate engine operation, higher efficiency vehicles Saab Automobile AB recently unveiled its Saab Variable Compression (SVC) engine, a new engine concept that enables fuel consumption to be radically cut while increasing engine performance per liter of engine displacement. The combination of reduced engine displacement, high supercharging pressure and a unique system