Although they deliver efficiency for the user, the latest engines place greater stress on the oil
through higher pressures and temperatures. This
can mean that
the oil undergoes
rapid base number
(BN) depletion and viscosity increase. In addition,
the lower natural specific lube oil
consumption (SLOC) may
increase the need
for sweetening.
Greater variability in
fuel quality also
means that the lubricant needs
to be able
to handle poor-quality
fuels.
SHELL ARGINA
New Shell Argina S5 is a BN55 grade
engine oil designed for the latest,
high-output and dual-fuel engines
from MAN and
Wärtsilä. It has improved base number (BN) retention
and viscosity control, and has been trialled
in the most demanding applications.
In tests to measure performance compared with a competitor’s oil,
Shell Argina S5 demonstrated
n 18% better BN retention
n 22% less oil consumption
resulting in a reduction in overall oil consumption from
0.4 g/kwh to 0.31 g/kwh.
