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Which AMSOIL Products Are Recommended
For Your Vehicles?
CVT and eCVT Transmission Technology
mechanisms of each are completely dissimilar.
Technicle Product Manager, Drivetrain
You may have noticed
that AMSOIL Fuel Efficient Synthetic (ATL) and Multi-Vehicle
Synthetic ATF (ATF) are now recommended for electronically
controlled continuously variable transmissions (eCVTs) in
certain vehicles. eCVTs, such as those found on the Toyota
Prius, are significantly different from belt- and chain-driven
continuously variable transmissions (CVTs). Several automakers
use CVT technology, so it's important to understand the
differences between belt-and chain-driven CVTs and eCVTs,
which are closer to traditional step-type automatic transmissions
The primary purpose
of any transmission, regardless of type, is to transfer power
from the engine through the drivetrain and, finally, to the
wheels. To do so, it must work within a narrow engine rpm
band to ensure it produces enough torque for the immediate
needs of the vehicle and then transmit that torque to the
driveline. Getting a heavy vehicle moving from a dead stop
requires a lot of torque. Step-type automatic transmissions
use a set of gears called planetary gears that work together
in different combinations called gear ratios. These gear ratios
make it possible to get a vehicle moving from a dead stop
and continue a smooth pattern of acceleration all the way
up to cruising speed. Each "step" is simply the
transmission changing from one gear ratio - or one speed -
to the next.
transmissions select a low gear ratio to get the vehicle moving
from a dead stop. As the vehicle builds momentum, less torque
is required to keep it moving and the transmission shifts
to higher gear ratios in sequence, slowing the engine at each
step until the vehicle is at cruise. Traditional automatic
transmissions have been in use in the U.S. for over half a
century. The efficiency of this technology has been enhanced
over the years, but there is always room for improvement.
fuel economy standards, auto manufacturers spend a lot of
time looking at ways to use the transmission to improve the
engine's efficiency. Each engine design produces its most
efficient power at a predetermined rpm - the "sweet spot."
One key to better fuel efficiency is keeping the engine in
its sweet spot for as long as possible.
When you drive
a conventional step-type automatic transmission, you feel
the rpm rise and drop each time the transmission shifts to
the next gear ratio. Each one of these bumps is an inefficiency that consumes
extra fuel because the engine is taken out of its sweet spot.
The same is true when you're climbing a grade and the transmission drops
into a lower gear, making the engine run faster and use more
fuel. One way manufacturers address this issue is by adding more gear ratios. This has
the benefit of shortening the duration of the bumps and gives
the transmission more options to keep the engine at its optimum
rpm. The inefficiencies can't be completely eliminated,
however, because the transmission is physically limited by
a finite number of gear ratios.
CVTs take a different
approach to managing rpm. Instead of gears, the most common
CVTs in the U.S. use a metal belt or chain running between
two pulleys. These pulleys are designed to spread open or
squeeze closed under hydraulic pressure, forcing the belt
or chain to ride higher or lower in them. The advantage of
this system is the vehicle's computer can quickly and
continuously adjust the pulleys to whatever ratio is required
for peak efficiency because it isn't physically
limited by gears. When driving a CVT-equipped vehicle the
driver pushes on the gas pedal and the CVT adjusts to keep
the engine at its most efficient rpm through the entire acceleration
process. There are no bumps or rpm increases felt by the driver.
This is even true when climbing a grade. The engine stays
at its most efficient rpm and the CVT adjusts to allow the
car to get over the hill.
The eCVT found
on the Toyota Prius and other hybrids differs from CVTs found
in other vehicles, such as the 2013 Nissan Altima or 2012
Scion iQ, because it does not use a belt or chain connected
to a pair of variable pulleys. Instead, an eCVT uses electric
motor/ generators to control the speeds of planetary gearset
components. This allows the eCVT to continuously change the
gear ratio, keeping the engine's rpm in the sweet spot.
Just like when driving other CVT-equipped vehicles, drivers
of vehicles with eCVTs don't feel the step
change common to traditional automatic transmissions, yet
the mechanisms (planetary gears) to achieve acceleration are
largely the same.
Recent test data
has shown we can confidently recommend AMSOIL Fuel Efficient
Synthetic Automatic Transmission Fluid and AMSOIL Multi-Vehicle
Synthetic Automatic Transmission Fluid for eCVTs, and they
will deliver the same high performance in eCVTs as they do
in traditional automatic transmissions. Published, AMSOIL
AMSOIL Signature Series
Synthetic Motor Oil
AMSOIL Signature Series Synthetic
Motor Oils are formulated to meet the latest API SN Resource
Conserving and ILSAC GF-5 industry specifications. AMSOIL
Signature Series Oils include 0W-20, 0W-30, 5W-30 and 10W-30
and represent the very best motor oils AMSOIL has to offer,
allowing motorists to take advantage of maximum extended
drain intervals. AMSOIL Signature Series Synthetic Motor
Oils are recommended for drain intervals of up to 25,000
miles/one year, whichever comes first (15,000 miles/one
year in severe service conditions).
here for more information
Synthetic Motor Oils offer the longest drain intervals
on the market, unsurpassed protection and performance that
effectively extends equipment life and improved fuel economy,
saving customers money at the pump and reducing the nation's
dependence on foreign oil.
The Presidents Desk
Synthetic Diesel Oil Articles and Testimonials
INC. warrants that the use of its lubricants will not cause
mechanical damage to any mechanically sound equipment when
AMSOIL INC. products are used in full compliance with the
company's recommendations and instructions."
synthetic motor oils are formulated to surpass engine test
specifications, offering protection far greater than competing
motor oils for extended drain intervals. Most synthetic oil
manufacturers make no claim to extended drain intervals, deferring
to the maintenance schedule provided by the vehicle manufacturer.
With its unparalleled oil and warranty program, AMSOIL offers
consumers unprecedented protection and economics.
More than 20 years
ago, AMSOIL began using the NOACK volatility test as a comparison
tool and measurement of quality. Back then, nearly every oil
tested side-by-side with AMSOIL synthetic motor oils failed,
and those that passed barely squeaked by. Other oil companies
paid no attention to NOACK results until Ford Motor Company
made it a requirement for service fill oils, validating what
AMSOIL had said all along.
NOACK Volatility Test
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
Synthetic Motor Oil resists high temperature volatization
better than other motor oils. AMSOIL Synthetic Motor
Oil maintains peak fuel efficiency and reduces oil consumption
AMSOIL Now An ISO Certified
received ISO 9001:2000 certification of our Quality Management
System (QMS). NSF International Strategic Registrations is
the registrar that has verified our QMS meets the requirements
of the ISO 9001:2000 standard, the most widely utilized quality
standard throughout the world for quality management systems.
ISO standards are used by over 300,000 companies worldwide
setting rigorous standards for businesses, government and
is applicable to any manufacturing and service organization
providing a framework for system development that focuses
on the customer, quality system performance and ongoing improvement.
AMSOIL received ISO 9001:2000 registration under the scope:
synthetic lubricants blending, packaging, and other fulfillment
directly associated with lubricant product.
certification puts AMSOIL in line with some of the most efficient
companies in the world. It is further assurance that the products
and services AMSOIL provides will continue to maintain the
high level of quality the company always demanded.
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