could be anything. if it's not engine oil, or some kind of engine treatment designed to add to your oil , it's more then likely a form of contamination.
too much fuel, excessive oil consumption
Excessive engine RPM....low oil level.....engine component wear/stess/fatigue ....over heating....
Excessive wear, or lack of oil. Or both. Generally lack of oil is what causes the excessive wear.
Excessive oil use, excessive water use, major oil leak, excessive smoking, ask a certified mechanic
engine burning oil
Adding too much oil will cause your engine to burn off the excessive oil which causes a lot of carbon buildup in your engine and a lot of blue smoke out your tailpipe. If the oil level is high enough, it can contact the crankshaft and foam up. If the oil foams it can damage the engine.
High oil pressure in a 1996 GMC Suburban can be caused by several factors, including a malfunctioning oil pressure relief valve, excessive viscosity of the oil due to low temperatures or incorrect oil type, or a clogged oil filter. Additionally, an oil pump that is operating at too high a pressure or an engine with excessive wear can also contribute to elevated oil pressure. It's crucial to diagnose the specific cause to prevent potential engine damage.
The injection system has a tiny air leak that causes the system to not work correctly until the air is purged from the injectors. Look for a tiny fuel leak near and injector or an increase in engine oil level that will show fuel contamination in the oil
Defective oil pressure sending unit? Try installing a manual gauge to check oil pressure Could be excessive engine wear due to mileage Weak oil pump
Knocking noise in the engine may be as a result of excessive backlash, misaligned gears and worn timing chain. Blowing of excessive oil pressure could be as a result of stuck regulator.
Crankcase explosions are typically caused by the accumulation of flammable gases, such as unburned fuel or oil vapors, within the engine's crankcase. These gases can ignite due to high temperatures or electrical sparks, often exacerbated by mechanical failures like worn seals or gaskets, which allow oil to leak and vaporize. Additionally, poor ventilation or excessive oil contamination can increase the risk of explosive conditions. Regular maintenance and monitoring of engine components can help mitigate these risks.
Premature wear of an engine can be caused by several factors, including insufficient lubrication, improper maintenance, and the use of low-quality oil or fuel. Overheating due to cooling system failures or excessive engine load can also accelerate wear. Additionally, contamination from dirt, debris, or water can lead to increased friction and damage to engine components. Regular maintenance and using the right fluids are essential to mitigate these issues.