synthetic automatic transmission fluid

Synthetic automatic transmission fluid

In today’s market, successful light-duty automatic transmission fluids (ATFs) must satisfy high expectations. Despite increasingly severe conditions of temperature and load, your ATF products must provide wear protection while fulfilling fuel economy and emissions regulations. To meet fill-for-life expectations, your ATF requires good property retention, anti-foam performance and long-term seal compatibility.

We can help you formulate high-performance ATFs with advanced synthetic base stocks. Through high viscosity index (VI), our SpectraSyn™ polyalphaolefin PAO and SpectraSyn Elite™ metallocene polyalphaolefin mPAO provide outstanding oxidative and thermal stability along with low-temperature properties and excellent wear protection.

Low temperature

Low temperature properties are critical in providing cold-start capability and fluidity, which can help boost energy efficiency. Our high-performance synthetic base stocks demonstrate improved low-temperature performance compared to ethylene propylene copolymer (EPC) oils.

The chart below shows kinematic viscosity at 40°C and 100°C, highlighting the superiority of high-viscosity SpectraSyn Elite™ 150 and SpectraSyn Elite™ 300.

low temperature properties chart


In tests measuring pour point (ASTM D5950) and Brookfield viscosity (ASTM D2983) – two key indicators of low-temperature performance – SpectraSyn Elite mPAO blends demonstrate superiority to conventional PAO and EPC 40 blends.

Pour point test

In the industry standard test measuring flow at low temperatures, SpectraSyn Elite mPAO blends demonstrate superior performance compared to the EPC 40 blend.
pour point test chart

Brookfield low-temperature viscosity test

In this industry standard test measuring Brookfield viscosity at -26°C, SpectraSyn and SpectraSyn Elite base stocks demonstrate outstanding performance compared to EPC base stocks.

brookfield low temperature viscosity test

Wear protection

The FZG Gear Test (ASTM D 5182) evaluates an oil’s antiwear and load-carrying capacities. We compared the performance of SpectraSyn PAO, SpectraSyn Elite mPAO and EPC 40 blends.

test operating parameters chart

Gear weight loss

At the end of stage, gear weight loss is measured to evaluate the quality of wear protection. Blends using SpectraSyn™ 100 and SpectraSyn Elite 150 and 300 show significantly lower gear weight loss, indicating good oil load capacity.

gear weight loss chart

Gear teeth wear

SpectraSyn PAO and SpectraSyn Elite mPAO blends show trace wear on pinion and gear teeth. Medium wear and polishing were observed on all pinion and gear teeth for EPC 40 blend.

gear teeth wear chat

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