The automatic transmission remains one of the most complex components in a modern vehicle. For years, its intricate inner workings have intimidated even seasoned do-it-yourself mechanics. Central to its operations is the valve body, often called the brain of the transmission.
- Withstands the rigors of heavy towing, elevated temperatures and challenging terrain
- Remains fluid in sub-zero temperature
- Provides reserve protection during heavy use and abuse and rising temps
Automatic transmission technology has been around for decades and continues to evolve with remarkable refinements to improve efficiency and performance. But as manufacturers increase performance, some transmission experts question if cost-cutting measures are decreasing durability. If true, using a premium automatic transmission fluid (ATF) is more important than ever. The transmission’s valve body is clean and virtually sludge-free following 180,000 severe-service miles. The clutch plates demonstrated only trace discoloration and earned a rating of “good,” the highest possible, for deterioration/wear.
RESERVE PROTECTION AGAINST HEAT AFTER 180,000 MILES
ABOT test performed by independent lab based on total acid number (TAN).
The Crucial Role of ATF
With tighter tolerances and potentially less robust components in modern
transmissions, the fluid that protects them has never been more important.
Transmission fluid performs several vital functions:
Hydraulic Power: Provides the pressure needed to shift gears.
Lubrication: Protects gears, bearings and other moving parts from Wear.
Friction Management: Provides the correct frictional characteristics for
smooth clutch engagement.
Heat Dissipation: Carries heat away from critical components.
If the transmission fluid breaks down due to extreme heat and pressure, it
loses its ability to perform these jobs effectively. Oxidized or degraded fluid
can lead to the formation of sludge and varnish. These harmful deposits
can clog the narrow passages within the valve body, causing solenoids
and valves to stick. This can result in hard shifts, hesitation or complete
transmission failure.
Furthermore, degraded fluid can cause clutchs plates to glaze over, reducing
their ability to grip and leading to slippage. Protecting the valve body and
the entire transmission starts with using a fluid designed to Withstand the rigors
of modern operation
