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Yanmar Marine has approved B5 Bio Diesel fuel for use across most of its recreational marine engines, as part of the company's continuing efforts to encourage environmentally friendly boating.

In general, when compared to standard diesel fuel, B5 Bio Diesel usage can reduce particulate matter and the emission of so-called greenhouse gases. A maximum 5% B5 Bio Diesel is blended with standard fuel and must conform to ASTM D6751 or ISO EN14214 specifications.

However, Yanmar Marine warns boat builders and other customers that Bio Diesel blends can adversely affect certain metal, rubber and plastic components of engine fuel supply and return systems. Bio Diesel-compatible components must be used instead, so that deterioration and damage do not occur. Builders and/or customers must verify that they are using the correct fuel supply and return system materials, otherwise they will lose their engine warranty protection. Yanmar Marine engines that have been approved for B5 Bio Diesel use, subject to the application of compatible fuel system components, are listed below.

Yanmar Marine Engines Approved for B5 Bio Diesel Use -
1GM10, 2YM15, 3YM20, 3YM30 3JH4E, 4JH3-HTE, 4JH3-DTE, 4JH4E, 4JH4-TE, 4JH4AE 4LHA-HTP, 4LH-HTZP, 4LHA-DTP, 4LHA-DTZP, 4LHA-STP, 4LH-STZP 4BY150, 4BY150Z, 4BY180, 4BY180Z, 6BY220, 6BY220Z, 6BY260, 6BY260Z 6LPA-DTP, 6LPA-DTZP, 6LPA-STP, 6LPA-STP2, 6LPA-STZP, 6LPA-STZP2 6LYA-STP, 6LY2A-STP, 6LY3-ETP, 6LY3-STP, 6LY3-UTP 6CXM-STP, 6SY-STP, 6SY-STP2, 6SY655, 8SY-STP

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