Notice in the images below that, even after 290,000 severe-service km, the transmission’s valve body was clean and virtually sludge-free. The used oil still exceeded the Ford MERCON V and Chrysler ATF+4 specifications for new fluid. AMSOIL Signature Series Synthetic ATF passed all 12 progressively difficult stages with no noticeable difference in wear protection between new and used fluid. Used oil from the 290,000 km Las Vegas taxi-cab severe-service test was subjected to the industry-standard FZG Gear Wear Test, which measures a lubricating fluid’s ability to resist gear-tooth scuffing. Did we succeed? We put our ATF to the test to find out. AMSOIL formulated Signature Series Synthetic ATF with high film strength and premium anti-wear/extreme-pressure additives to help prevent wear during tortuous service. Varying speeds and loads, like those experienced by the Las Vegas taxi cabs, cause torque multiplication and extreme stress on gears and bearings. What does AMSOIL reserve protection mean to vehicle life? Reserve protection against heat after 290,000 kmĪMSOIL Signature Series ATF continued to provide reserve protection against heat after 290,000 km severe-service. The graph below shows that AMSOIL ATF continued to offer reserve protection against heat after 290,000km of severe service. The Aluminum Beaker Oxidation Test (ABOT), an industry-standard test used to determine a transmission fluid’s oxidation resistance, showed that Signature Series contained 83 percent of its original oxidation inhibitors, proving its long-lasting resistance to thermal breakdown. Following 290,000km, a transmission was selected for analysis.Īfter 290,000 km of severe service, an independent, third-party lab revealed that Signature Series Synthetic ATF resisted oxidation longer than required for new fluid to meet the Chrysler ATF+4 specification. The vehicles routinely endured demanding stop-and-go driving while loaded with passengers and cargo in extremely hot desert temperatures, placing tremendous stress on the fluid. To demonstrate its capabilities in severe service, Signature Series Synthetic ATF was installed in a fleet of Las Vegas, US taxi cabs and subjected to a 290,000km severe-service test. It’s easy to say AMSOIL will outperform other fluids at the above tasks, but what’s the evidence? Deliver the right frictional requirementsįind your nearest AMSOIL distributor in Europe Reserve protection after 290,000km severe-service test.For optimal vehicle performance, the best transmission fluid must…. ![]() ![]() Transmissions used for hauling or towing are subjected to enormous torque and increased heat, the number-one enemy of any transmission. These modern designs also pack in an enormous number of gears, clutch packs and narrow oil passageways that require a steady supply of high-quality fluid to function. Today’s transmissions are smaller and must endure higher horsepower and torque, all while delivering smoother shifts with longer fluid-life recommendations. Your transmission might be the most complicated component of your car or truck. Read on to see what our grueling testing protocol revealed. We believe AMSOIL Signature Series Synthetic Automatic Transmission Fluid is the best transmission fluid available. We don’t base that claim on wishful thinking – we punish our products in real-world, severe-service applications.
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