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How Does MOTOR OIL Work?
Lubricate and cool
– Generally, when people talk about “motor oil,” they are talking about the oil
that goes into the crankcase, a special oil reservoir, in a four-cycle engine,
like the engine in your car. Motor oil lubricates the engine of a vehicle or
piece of equipment and cools a significant portion of the engine. While the
engine is at rest, the motor oil rests in the crankcase, a pan bolted to the
bottom of the engine block. When the engine starts, the oil pump feeds oil from
the pan to the oil distribution system, a network of passages, tubes, grooves
and holes leading to the engine bearings and other surfaces that receive a large
volume of pressurized oil for lubrication. Other parts receive oil through
splash or spray. For example, the overhead valve system receives a carefully
controlled quantity of nonpressurized oil for lubrication.
Other functions
– In addition to lubricating and cooling engine parts, motor oil must allow easy
engine starting, protect the engine from corrosion and oxidation, keep the
engine clean, form a tight seal between piston rings and cylinder walls, and
help the engine use fuel efficiently. Diesel engines require protection against
the corrosion caused by a combination of their extremely high operating
temperature and acidic products introduced into the engine by diesel fuel and
products of oil breakdown. Diesel oils provide protection against corrosion
through detergent-alkalinity additives, which give the oil its Total Base Number
(TBN). Oils with high TBN neutralize acids over a longer period than oils with
low TBN do. In fact, in programs of used oil analysis, used by fleets to reduce
their maintenance costs, an oil’s fitness for ongoing service is determined
largely by its TBN.
Features
and Benefits
Feature:
Cooler operation.
Benefit:
Cooler engines resist stress and wear. They last longer, perform better and
require fewer repairs.
Feature:
Thermal and oxidative stability – AMSOIL synthetic motor oils resist formation
of sludge, varnish, acids, deposits and other degradation products.
Benefit:
Engines stay clean, which helps them perform better, last longer and require
fewer repairs.
Feature:
Consistent viscosity in high and low temperatures.
Benefit:
Easier cold temperature starting. Better high and low temperature protection,
which helps engines last longer and require fewer repairs.
Feature:
Superior friction reduction.
Benefit:
Lower wear rate, which helps engines last longer and require fewer repairs.
Improves fuel economy.
Feature:
Low temperature fluidity.
Benefit:
Easier cold temperature starting. Better wear protection in cold temperatures,
which helps engines last longer and require fewer repairs.
Feature:
Low volatility – AMSOIL synthetic motor oils don’t evaporate.
Benefit:
Reduced oil consumption. Better oil flow gives better fuel economy and better
wear protection.
Feature:
Broad temperature range of application.
Benefit:
AMSOIL synthetic motor oils work safely and protect at higher and lower
temperatures than conventional oils do.
Feature:
High TBN (diesel oils).
Benefit:
Reduces rate of engine corrosion, which helps diesel engines last longer and
require fewer repairs. Increases oil service life, which reduces maintenance
costs.
Feature:
Extended service life capability.
Benefit:
AMSOIL synthetic motor oils last longer than conventional oils do, which saves
motorists money and reduces the environmental impact of used lubricants.
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