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Operation Manual Mitsubishi SL-Series diesel engines
Version 08/2004
LUBRICANT SPECIFICATIONS
ENGLISH
8.3 Limiting requirements for
engine oils
If a used oil analysis program is conducted in
order to determine the condition of the oil, consult
the chart below. Change the oil if any of these
requirements are not met.
CAUTION
Avoid mixing oils with different brands. In most
cases, oils with different brands are not
compatible and, when mixed, they can seize
parts such as piston rings, cylinders, etc. and
cause wear to moving parts. It is best to stick
with the same brand and one type of oil at
successive service intervals.
A oil B oil
NOTE
• Oil change intervals depends on the fuel
properties. Be sure to use the recommended
fuels only.
• The limit of total base number is 1/2 of that
of a new oil in case of a perchloric-acid
analysis method.
Property Unit Test Method Limit
Viscosity cSt @ 100°C (212°F)
JIS
K 2283
+30% / -15% , max. of new oil
Total base number (HCl) mgKOH/g
JIS
K 2501
2.0, min.
Total acid number mgKOH/g +3.0, max. of new oil
Water content Vol%
JIS
K 2275
0.2, max.
Flash point °C (°F)
JIS
K 2265
180 (356), min.
Pentane insolubles Wt%
ASTM
D 893
0.5, max.
Pentane insolubles coagulated Wt% 3.0, max.
Table 9 Limiting requirements for engine oils
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