WÄRTSILÄ PAAE051728, Instruction Manual

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Wärtsilä
Corporation
Finland
Technology
REQUIREMENTS & OIL QUALITY
This doc is the property of Wärtsilä Corp. and shall neither be copied, shown or communicated to a third party without the consent of the owner.
Subtitle Product Made 05.09.97 Page Document No Rev
Instruction Wärtsilä 32 Appd. 05.09.97 1 (7)
4V92A0645
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Revised date: 18.07.2005 Changed by: D-message No.: 64385
1.2.5 REQUIREMENTS AND OIL QUALITY
SYSTEM OIL REQUIREMENTS AND QUALITY FOR WÄRTSILÄ 32 ENGINES
Viscosity
Viscosity class SAE 40
Viscosity Index (VI)
Min. 95
Alkalinity (BN)
The required lubricating oil alkalinity is tied to the fuel specified for the engine, which is
shown in the table below.
FUEL STANDARDS AND LUBRICATING OIL REQUIREMENTS
Category Fuel standard Lube oil BN
ASTM D 975-01, GRADE NO. 1-D, 2-D
A BS MA 100: 1996 DMX, DMA 10 - 30
CIMAC 2003 DX, DA
ISO 8217: 1996(E) ISO-F-DMX, DMA
BS MA 100: 1996 DMB
B CIMAC 2003 DB 15 - 30
ISO 8217: 1996(E) ISO-F-DMB
ASTM D 975-01, GRADE NO. 4-D
ASTM D 396-04, GRADE NO. 5-6
C BS MA 100: 1996 DMC, RMA10-RMK55 30 - 55
CIMAC 2003 DC, A30-K700
ISO 8217: 1996(E) ISO-F-DMC, RMA10-
RMK55
D CRUDE OIL (CRO) 30 - 55
It is recommended to use in the first place BN 50-55 lubricants when operating on heavy
fuel. This recommendation is valid especially for engines having wet lubricating oil sump
and using heavy fuel with sulphur content above 2.0 % mass. BN 40 lubricants can be used
when operating on heavy fuel as well if experience shows that the lubricating oil BN
equilibrium remains at an acceptable level.
BN 30 lubricants are recommended to be used only in special cases, such as installations
equipped with an SCR catalyst. Lower BN products eventually have a positive influence on
cleanliness of the SCR catalyst. With BN 30 oils lubricating oil change intervals may be
rather short, but lower total operating costs may be achieved because of better plant
availability provided that the maintenance intervals of the SCR catalyst can be increased.