TranSynd™, a co-branded ATF exclusively formulated by Castrol for use in heavy-duty Allison Automatic Transmissions, extends oil drain intervals for Allison automatic transmissions by up to 300%.

A nonretarder-equipped fire or rescue vehicle using 100% TranSynd™ can enjoy Allison's recommended general duty interval at 100,000 miles between oil changes. Severe duty applications using 100% TranSynd™ can achieve 50,000 miles between oil changes. In either application, operators will get the substantial benefits of fewer oil changes compared any other fluid recommended by Allison for general or severe duty.

"Today's transmissions operate at higher temperatures and in far more demanding conditions than in the past," says Lynn Gibboney, manager of Tactical Marketing for Allison Transmission. "TranSynd™ offers as much as four times longer oil drain intervals compared with other automatic transmission fluids. In addition, the product reduces fleet costs relating to maintenance, labor, filter replacement and oil disposal."

TranSynd™ extends oil change guidelines for Allison transmissions to 100,000 miles/48 months for general duty and 50,000 miles/24 months for severe duty. This compares to recommended changes for conventional transmission fluids of 12,000 miles/6 months for severe duty and 25,000 miles/12 months for general duty. TranSynd™, which is designed for use in most medium- and heavy-duty automatic transmissions, also reduces maintenance cycles, increasing vehicle up-time and fleet revenue.

Engineered for Allison Transmission by Castrol, TranSynd™ dramatically extends drain intervals, lowers maintenance costs and increases overall fleet productivity. The product is especially well suited for use in severe-duty applications. While TranSynd™ brings value to all fleets, it is especially beneficial for use in large fleets having many severe-duty vehicles that need a long lasting, proven ATF solution.

Because TranSynd™ functions within wider operating temperature ranges, it is ideal for use year-round in all climates. TranSynd™ also is much more resistant to thermal breakdown than other fluids. This ensures superior protection of transmission components and extended fluid and transmission life.

TranSynd™ is not subject to the degradative properties of most conventional fluids. In fact, in fleet test studies the product has demonstrated dramatic performance over other ATFs in severe applications. Perhaps most impressively, this includes an extension of oil drain intervals by 300% and a reduction of fleet maintenance hours by 75%.

Tests have shown significant operational benefits of TranSynd™ over other products. These include:

7 Superior wear resistance

7 Greatly extended drain intervals

7 Superior protection of transmission components

7 Dramatic oxidation reduction

7 Far less sheardown

7 Significantly improved viscosity stability

7 Improved shift quality

7 Extended transmission life

7 Considerably reduced overall transmission life cycle costs

7 Lower fleet operating and maintenance expenses

TranSynd™ is bringing a whole new level of functionality and performance to heavy-duty applications, one that is enabling the industries served by medium- and heavy-duty automatic transmissions to operate more efficiently, productively, and for significantly less cost.

TranSynd™ meets the Allison TES-295 Transmission Fluid Specification for Severe Duty and Extended Drain Intervals. The product is also approved to the General Motors DEXRONb IIIG Specification.

Allison Transmission is the world's leading designer, manufacturer and seller of medium- and heavy-duty automatic transmissions for trucks, buses, off-road and military vehicles and RVs.

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