Additive Packages Play Key Role in Keeping an Engine Clean - Engine Builder Magazine
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Additive Packages Play Key Role in Keeping an Engine Clean

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Premium quality motor oil
will maintain its effectiveness over the life of the oil drain,
allowing it to help in keeping the engine clean.

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Additive
packages are added to motor oil and play a key role in helping to keep
an engine clean and protected from varnish and sludge, as well as wear
from heat and acids. Additives can consist of anti-wear agents,
friction modifiers, dispersants, detergents, viscosity index improvers
and antioxidants. Some key cleaning ingredients that make up motor oil
additive packages are detailed below:

  • Anti-wear
    additives lay down a protective, sacrificial film between moving parts
    and also help stop oxidation of the motor oil.

  • Dispersants grab dirt and sludge before they can build up
    during engine operation, holding them in suspension and preventing them
    from depositing on to engine parts.
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  • Detergents help keep high-temperature surfaces such as pistons clean.
    Changing the motor oil at proper intervals will help to prevent ring
    sticking and piston deposits.
  • Viscosity index improvers are chemical additives that are added to
    motor oil to ensure proper oil viscosity at extreme cold and hot
    operating conditions, enabling the development of multi-grade oils such
    as SAE 5W-20.
  • Friction modifiers help to reduce friction in critical areas of the engine, thus enhancing the vehicle’s fuel economy.
  • Anti-oxidants stop oil oxidation to help keep the oil from becoming too thick.
  • Properly functioning engine oils help enhance fuel economy, prevent
    sludge and varnish deposits and maintain proper low-temperature
    pumpability. The additives in engine oils are consumed during use at
    different rates, which vary with vehicle, engine type and driving
    conditions; therefore, it is not possible to establish a universal oil
    drain interval. Always follow the recommended oil drain interval and
    oil specifications found in the owner’s manual.

    Tech Tip courtesy of Pennzoil, www.pennzoil.com.

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