ENEOS SUSTINA
by ENEOS Motor Oil on Friday, November 12, 2010 at 10:55am
At the SEMA show in Las Vegas on November 2, 2010, Nippon Oil (USA) Ltd. officially announced a new product line for the US market to be sold under the ENEOS brand name: SUSTINA. This is a very exciting new product that has launched in Japan as of November 1, 2010, and will officially launch in the US in early 2011.
The ENEOS team is very excited about the SUSTINA product due its new proprietary technologies developed in-house by JX Nippon Oil and Energy Corporation. These include a new synthetic base stock called WBase and a new sulfur-free anti-wear additive chemistry that promotes longer life of detergents, keeping your engine cleaner, longer.
At the heart of SUSTINA is the WBase technology. This new synthetic base oil is a Gas-to-Liquid Equivalent (GTLE), and was engineered to give the oil higher fluidity. Traditional synthetic base oils consist of hydrogen-carbon molecules which contain ring structures. These structures can often collide and intertwine with each other, slowing oil movement, especially at cold temperatures. WBase technology realigns the hydrogen-carbon chain into a structure that is more or less completely straight, allowing freer movement of the oil molecules and providing lower engine drag and improved fuel efficiency and power.
How does WBase compare to PAO? Like PAO, WBase is a high-performance synthetic base oil. In comparison, though, WBase has a higher Viscosity Index (VI) – when considering 4cSt base stocks, PAO has a VI of 124, while WBase has a VI of 140. This translates to higher stability across broader viscosity ranges, while requiring smaller amounts of VI Improver.
In addition to WBase, JX Nippon Oil and Energy has developed a new anti-wear additive chemistry. Most engine oils today utilize zinc, sulfur, and phosphorus in their anti-wear additives, but sulfur can negatively impact the cleanliness of an engine. This is because Sulfur, when exposed to oxygen, moisture, and heat, can form harmful acids that attack the detergents in the oil. Once all of the detergents are destroyed by the acids, the oil can no longer perform one of its primary functions – keeping dirt and contaminants in suspension. The industry-wide response to this is to have a high TBN in order to neutralize the acids, but this is only effective to a point.
Pistons used in testing to compare Sustina, GF-4, and GF-5 oils
The ZP additive chemistry found in SUSTINA provides superior anti-wear protection, but without the use of sulfur. By eliminating sulfur, the formation of harmful acids is greatly reduced and the need for a high TBN is diminished. Therefore, the detergents used in SUSTINA have a much longer life, up to twice as long as those found in other fuel-conserving ILSAC GF-4 and GF-5 licensed engine oils.
Once SUSTINA launches in the US, it will be available in 6/1 quart cases in 0W-20 and 0W-50 grades, with other grades and package sizes being made available in the future.