Does motor oil expire?
Yes, though if stored unopened at 45 to 80 degrees Fahrenheit motor oil can remain stable for up to five years. However, it is recommended to be used within two years for best performance.
How can I tell if my motor oil is bad?
If your oil is old and needs changing, one of the first things you'll notice is the color. Fresh oil is usually transparent, and either a light brown or amber color. Old or dirty oil usually looks dark, opaque, and can be dark brown, rust, or black. The darker the oil, the dirtier it is.
Should I be concerned if my vehicle's dipstick shows black oil?
Yes. Black oil indicates a high level of dirt and low viscosity. It should be changed immediately.
How often should I change my oil?
Automakers generally recommend an oil change every 5,000 to 7,500 miles with some exceptions. Your vehicle owner's manual should specify the type of oil and frequency of change required.
Are there any risks with changing my own oil?
Yes. Even if you are careful and have all the proper tools, such as a car lift, any mistakes made during a do-it-yourself oil change can cost thousands of dollars. A professional at our dealership is trained and practiced at performing oil changes near Barlett, TN. It's safer to allow us to perform this regular maintenance.
What happens to an engine without oil?
Without fresh oil to clean the engine parts, the subsequent buildup of carbon and dirt is lethal to an engine and it can cause the entire engine block to overheat and seize. Once this happens, the engine is rarely repairable without the input of a significant outlay of cash. It's often easier to replace the engine or buy a new vehicle. This is an expense no vehicle owner wants or needs.