Shell updates trunk piston oil offer
Shell Marine has released trunk piston oils Shell Argina and Shell Gadinia, intended to meet the demands of higher pressures and operating temperatures in modern mid-speed engines.
Those characteristics, driven by the need for better fuel economy and lower fuel costs, can challenge oils with the risk of rapid BN depletion and increased viscosity. According to Marcus Schaerer, global marketing manager, Shell Marine, explained that Shell Argina and Shell Gadinia feature ‘excellent BN retention and viscosity control to address the faster oxidation that leads to deposit formation or lubricant contamination, without resorting to unnecessary oil sweetening’.
Shell Argina is available in four grades: S2 (BN20) for residual, blended and distillate fuels; the ‘mainstream’ S3 (BN30) and S4 (BN40); and S5 (BN55), offering extra protection from deposits and extended oil life. The new Shell Gadinia S3, an addition to the range, has a comprehensive set of non-engine approvals for a wide range of non-engine shipboard applications, to provide a single long-term lubricant solution for smaller vessels.
Shell noted that trials at its Marine and Power Innovation Centre in Hamburg confirm that Shell Argina and Shell Gadinia avoid sludge formation and improve piston and crankcase cleanliness, thus blocking deposit formation.
“Compared with a high-performing industry reference oil, the new Shell Argina S5 shows a 12.6% improvement in BN retention and a 15-20% improvement in piston undercrown deposit thickness,” said Schaerer. “For operators, this can translate into lower operating costs via longer oil life, less sweetening and reduced maintenance.”
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