Mitsubishi S12R Service Manual

14 APPENDIX
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
202
Pub. No. 291Y1-40720 Revision: 5
Service Limits for Engine Oil
Engine oil degrades through the use and by the lapse of time. The quality of engine oil and the operating
condition of the engine have influence on deterioration of the engine oil.
• Engine oil must be changed at the time stipulated in "7
SCHEDULED MAINTENANCE" (→ Page 117).
• For the determination of engine oil properties degradation, see the table below.
If any of oil properties exceeds the limit, change the engine oil with new oil.
Table 14-4 Engine Oil Properties
Properties Standard value Test standard
Kinetic viscosity mm
2
/s@100°C
Continuous use
+30% or less rate of change
from new oil
10 mm
2
/s or more
JIS K 2283
ISO 3107
ISO 2909
Emergency use
+30% or less of the change rate
from new oil
-20% or more rate of change
from new oil
For portable
+30% or less of the change rate
from new oil
-15% or more rate of change
from new oil
Base number mgKOH/g
2.0 or more by hydrochloric acid (HCL) method
1/2 of new oil or more by the perchloric acid (PCA)
method
JIS K 2501
ISO 3771
Acid number mgKOH/g +3.0 or less than new oil
JIS K 2501
ISO 3771
Water content Volume% 0.2 or less
JIS K 2275
ISO 9029
Flash point (open cup) °C [°F] 180 or more [356 or more]
JIS K 2265
ISO 3679
ISO 2719
Pentane insolubles mass% 0.5 or less ASTM D893
Coagulated pentane
insolubles
mass% 3.0 or less ASTM D893

Mitsubishi S12R Specifications

General

Brand	Mitsubishi
Model	S12R
Category	Engine
Language	English