14 APPENDIX
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
198
Pub. No. 291Y1-40720 Revision: 5
Engine Oil Quality Standards
* : Temperature of aluminum panel: 300°C [572°F] and 325°C [617°F], Temperature of engine oil: 100°C
[212°F], Splatter time: 15 seconds, Downtime: 45 seconds, Test time: 8 hours. The properties are the weight
of solid product accumulated on the panel.
Table 14-1 Engine Oil Quality Standards (Grade CF SAE 30)
Item Unit
Recommended
property value
Test method
ASTM Color - L3.0 JIS K 2580
Density 15°C [59°F] g/cm
3
0.87 to 0.90 JIS K 2249
Kinetic viscosity
40°C [104°F]
mm
2
/s
95.0 to 110
JIS K 2283
100°C [212°F] 11.0 to 12.5
Flash point °C [°F] 200 [392] or more JIS K 2265
Base
number
Hydrochloric
acid method
Sulfur content in
fuel
1.0 mass% or less
mgKOH/g
10 or more
(up to 13)
JIS K 2501
0.2 mass% or less
8.0 or more
(up to 13)
Perchloric acid
method
1.0 mass% or less
13 or more
(up to 16)
0.2 mass% or less
11 or more
(up to 16)
Acid number mgKOH/g 1.8 or less JIS K 2501
Sulfur content % 0.7 or less JIS K 2541
Sulfuric acid ash mass% 2.0 or less JIS K 2272
Carbon residue content % 2.0 or less JIS K 2270
High temperature shear viscosity 150°C [302°F] mPaꞏS 2.9 or more JPI-5S-36-91
Pour point °C [°F] -12.5 [9.5] or less JIS K 2269
Additives
Ca
mass%
0.40 to 0.48
JIS K 0116
P 0.037 to 0.050
Zn 0.042 to 0.055
B 0.010 or less
Si 0.005 or less
N 0.060 or less JIS K 2609
Bubbling test
I
mL
10/0 or less
JIS K 2518II 30/0 or less
III 10/0 or less
Panel coking test*
300°C [572°F]
-
40 or less
FED791-3462
325°C [617°F] 300 or less