AMSOIL Synthetic 10W-30 Motor
Oil (ATM) and 10 other well known brand name competing conventional, synthetic
and synthetic blend 10W-30 motor oils were subjected to a series of motor oil
tests by the API.
The Four-Ball Wear Test evaluates the
protection provided by engine oil under conditions of pressure and sliding
motion. The test uses 4 steel balls to simulate metal on metal contact.
The size of the scar left as a result of the test determines the amount of wear
protection the lubricant provides. The smaller the wear scar, the better the
protection. Tests show that AMSOIL 10W-30 Synthetic Motor Oil has better
antiwear performance than all other oils tested. With AMSOIL Synthetic Motor
Oil, engine life can be extended and major repairs are often reduced.
The Cold Crank
Simulator Test determines the apparent viscosity of lubricants at low
temperatures and high shear rates. Viscosity of lubricants under these
conditions is directly related to engine cranking and start ability. The lower a
lubricant’s cold crank viscosity, the easier an engine will turn over in cold
temperatures. The low cold crank viscosity of AMSOIL Synthetic 10W-30 Motor Oil
reduces drag on moving engine parts and allows engines to achieve critical
cranking speed in extremely frigid temperatures. Engines turn over quickly and
dependably in the coldest winter temperatures.
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The NOACK Volatility Test
determines the evaporation loss of lubricants in high temperature service. The
more motor oils vaporize, the thicker and heavier they become, contributing to
poor circulation, reduced fuel economy and increased oil consumption, wear and
emissions. AMSOIL 10W-30 Synthetic Motor Oil resists high temperature
volatilization (evaporation) better than other motor oils. AMSOIL Synthetic
Motor Oil maintains peak fuel efficiency and reduces oil consumption and
emissions.
The Pour
Point Test determines the lowest temperature at which a lubricant will flow. The
lower a lubricant’s pour point, the better protection it provides in low
temperature service. Unlike conventional oils that solidify in cold
temperatures, AMSOIL 10W-30 Synthetic Motor oil remains fluid down to -58° F.
AMSOIL Synthetic Motor Oil helps engines turn over easier and flows quickly to
engine parts for critical start-up protection. Engines start faster and wear is
greatly reduced for extended engine life.
- Total
Base Number (TBN) is the measurement of a lubricant’s reserve alkalinity,
which aids in the control of acids formed during the combustion process. The
higher a motor oil’s TBN, the more effective it is in suspending wear-causing
contaminants and reducing the corrosive effects of acids over an extended
period of time. The high TBN of AMSOIL Synthetic 10W-30 Motor Oil allows it to
effectively combat wear-causing contaminants and acids, providing superior
protection and performance over extended drain intervals.
- The Thin Film
Oxygen Uptake Test (TFOUT) is used to evaluate an engine oil’s ability to
resist heat and oxygen breakdown when contaminated with oxidized/nitrated
fuel, water, and soluble metals such as lead, copper, iron, manganese and
silicon. This test is designed to mimic the operating conditions of a gasoline
engine. AMSOIL 10W-30 Synthetic Motor Oil has superior heat and oxidation
resistance to control sludge deposits and extend oil life. Engines stay clean
for maximum protection and oil changes are reduced, saving time and money.
