SCT ESTER technology: MANNOL celebrates five years of innovation in lubricants

Five years ago, MANNOL introduced SCT ESTER technology. Originally developed for aviation requirements, the technology is based on high-quality Group V oils. Today, it is used in more than 150 products from MANNOL and other brands of the SCT Group – in over 1,000 different variants. Its areas of application range from road transport to motorsports and mechanical engineering to applications under extreme weather conditions. According to Dmitry Roskach, Chief Technology Officer at MANNOL / SCT, SCT ESTER technology has proven itself reliable worldwide under real-world conditions, particularly in terms of wear protection and oxidation stability.

Continuous development and test results

The last five years have been marked by continuous development of this technology. Extensive testing, both in the laboratory and in real-world applications, has resulted in several significant improvements:

Reduced wear and high load capacity

Comparative tests according to ASTM D4172 and D2783 show that the diameter of the wear spot could be reduced to an average of 0.28 mm with SCT ESTER oils. By comparison, mineral and PAO oils have values of 0.39 to 0.45 mm. The critical load limit was increased to 1,100 newtons (N) (equivalent to approximately 112 kg or 247 lbs) – with conventional oils, it is between 820 and 900 N (approx. 84–92 kg or 185–198 lbs). This results in improved abrasion resistance, even under extreme conditions.

Improved oxidation stability and longer service life

PDSC tests (ASTM D6186) show a 20 to 30 minute longer induction time (OIT) at 210 °C compared to conventional Group III oils. This increased oxidation stability provides reliable protection, especially at high temperatures, such as those found in turbocharged or hybrid engines. In addition, the thermal decomposition of the oil is delayed, which extends its service life.

Lower evaporation rate and lower volatility

NOACK volatility tests (ASTM D5800) show that the evaporation rate of ester formulas is 7.5–9%, while Group III oils reach 11–13%. This reduces oil consumption and ensures consistent viscosity over longer periods of use.

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Wide range of applications for SCT ESTER technology

SCT ESTER technology is now used in a wide variety of areas:

In motor oils, it supports a stable oil film – particularly suitable for start-stop systems and sporty driving.
In transmission oils, it reduces scuffing, especially in modern DSG, CVT, and all-wheel drive transmissions.
Hydraulic oils with SCT ESTER technology offer high thermal stability even under continuous load in construction and industrial applications.
Special lubricants benefit from reliable lubrication in the presence of dirt, moisture, and temperature fluctuations when used in off-road vehicles, chainsaws, or in the marine sector.

About MANNOL

MANNOL offers a wide range of products with over 500 different lubricants and fluids – from engine and transmission oils to additives and greases to car care and industrial oils. Founded in 1993, the company relies on in-house production from manufacturing to filling in metal and plastic containers. Today, MANNOL products are available in more than 130 countries.