what can cause oil consumption
Oil Leakage. A bad PCV valve can cause excessive oil leakage and consumption. A PCV valve helps relieve pressure in the crankcase. If the PCV valve malfunctions, crankcase pressures can increase, forcing oil through seals and gaskets.
1 Air pollution also impacts the health of communities surrounded by oil and gas development, read our study Gas Patch Roulette. 2  Flaring, the burning of excess natural gas at oil and gas wells, causes methane pollution, a potent greenhouse and contributor to climate change.