synthetics motor oil
of the modern chimistry?
Synthetic motor oils raise many questions
of quality and price when compared to conventional petroleum
based motor oils. Synthetic motor oils are purported to be
much better than petroleum-based oils and the price difference
is substantial. Can engine owners justify the increased price
for synthetic oils? The following facts and information may
assist you in making decisions on selection and use of synthetic
motor oils for your lubrication needs.
Synthetic oil is a product made by scientists
under controlled conditions. Synthetic oil is a pure, idealized
lubricant made from select chemical basestocks and additives.
It is engineered to perform under rigorous conditions and
The molecules in synthetic oil are all the
same size and shape. Synthetic oil is blended with a higher
degree of lubricity. It is slicker. It contains more cleaning
agents to keep the inside of engines clean longer. It contains
less additives that can break down under adverse conditions,
such as excessive heat and pressure. It contains no waxy contaminants
that reduce lubrication in cold temperatures.
Natural petroleum-based motor oils are found in nature and
contain natural contaminants. Oil refineries take crude oil
from an oil well and refine it by removing some of the contaminants
and adding chemical additives to improve the performance and
quality of the oil. However, some contaminants such as wax,
which is difficult to remove in the refining process, remain
in the oil. Natural oil is comprised of a mixture of hydrocarbons
of assorted sizes and shapes.
Comparison of Synthetic Oil to
1. Synthetic motor oils will withstand higher
engine temperatures than petroleum oils — 600 degrees
F, as compared to 450 degrees for petroleum oils.
2. Synthetic oils will begin lubrication at lower temperatures
than petroleum oils — about -60 degrees, compared to
about -20 degrees for petroleum oils.
3. Synthetic oils contain molecules of the same size and shape,
which reduces volatilization of molecules compared to petroleum
4. Synthetic oils contain more detergent additives, which
allows more cleaning of internal engine parts than petroleum
5. Synthetic oils are slicker than petroleum oils, which means
less wear and tear, cooler engine temperatures and better
6. Synthetic oils are more resistant than petroleum oils to
molecular chain shear, which reduces lubrication and cooling
capability of the oil.
7. Synthetic oils form fewer deposits inside the engine than
Compatibility with Petroleum-based
Synthetic oils are completely compatible
with petroleum-based oils. Synthetic oil is better than petroleum-based
oils. The decision to pay the difference in price is yours.
The application you have for the oil may help you make your
decision. Hardworking engines under full load in hot temperatures
will benefit most from synthetic oils. Those living in cold
climates will also benefit from almost instantaneous lubrication
in cold engine-starting temperatures.