Q:

What happens if too much engine oil is added to a vehicle?

A:

Quick Answer

If too much engine oil is added to a vehicle, parts of the engine may agitate the oil, turning it into a foam that cannot lubricate the components or carry away contaminants. Regularly checking to see that a vehicle contains the correct amount of oil as recommended by the owner's manual can help prevent engine damage.

Continue Reading

Full Answer

One of the primary functions of engine oil is to reduce friction and wear on the vehicle caused by the movement of engine components, such as the crankshaft that spins. As oil lubricates the parts, it also collects contaminants, making it necessary to change the oil periodically.

Adding too much oil allows the crankshaft to dip into the fluid, whipping air into it and causing tiny bubbles. This turns the oil into a foam-like substance that no longer has the ability to flow and coat the engine components properly, so the vehicle is at risk of damage as the metal parts come into contact with one another, according to Motor Oil Matters, which is part of the American Petroleum Institute.

Additionally, if the vehicle contains more oil than it requires, the lubricant may burn within parts of the engine, leaving behind harmful carbon deposits. To prevent this, drivers need to use a dipstick when adding engine oil to the vehicle and ensure the amount does not exceed the maximum level marked on the stick.

Learn more about Engine Oil

Related Questions

  • Q:

    How do you use the engine oil dipstick?

    A:

    To use the engine oil dipstick to check a vehicle's oil level, first locate the dipstick, then pull it out, and wipe it clean. Then, insert the dipstick back into the pipe, pull it out again, and view the film of oil at the end of the stick to determine oil needs.

    Full Answer >
    Filed Under:
  • Q:

    What are the risks of adding zinc to engine oil?

    A:

    Motor oil experts do not recommend adding zinc to engine oil unless the vehicle is a hot rod intended for racing purposes, but also warn of no particular risks associated with adding zinc dithiophosphate to engine oils within strict standards, depending on the age of the engine and its intended use. However, modern motor oil manufacturers produce and sell specialty motor oils with higher levels of zinc already added.

    Full Answer >
    Filed Under:
  • Q:

    How do you repair an engine oil leak?

    A:

    Raise the vehicle if necessary to inspect the underside of it, and thoroughly inspect the engine and oil pan to determine the cause of the leak. Some common causes of oil leaks include faulty gaskets, a loose or damaged drain plug, and malfunctioning oil filters. Apply the appropriate repair, and check the engine for leaks after the repair to ensure the problem is solved.

    Full Answer >
    Filed Under:
  • Q:

    What happens if a person doesn't change the oil in a vehicle?

    A:

    If a vehicle's oil is not changed as required, the filter stops working and dirt accumulates in the engine making the oil lose its lubricating qualities. As a result, the metals in the vehicle come into contact, making them wear.

    Full Answer >
    Filed Under:

Explore