Yanmar Marine Engines approved to accept B5 Biodiesel

ASAIRSVILLE, Ga. – Yanmar Marine USA Corp. has endorsed the use of B5 Biodiesel in its diesel engines as part of its continuing efforts to create more environmentally-responsible products, the company reported in a recent statement. The eco-friendly diesel alternative has been approved for use across Yanmar’s recreational marine line.

Compared to standard diesel fuel, B5 Biodiesel can help reduce greenhouse gases and particulate matter, also known as soot, according to the company. The blended fuel is 95-percent standard diesel with a maximum of 5 percent biodiesel and conforms to specifications outlined in ASTM D6751 or ISO EN14214.

For the 9.1 to 125 hp Yanmar pleasure boat engine range, the 1GM10, 2YM15, 3YM20, 3YM30, 3JH4E, 4JH3-HTE, 4JH3-DTE, 4JH4E, 4JH4-TE and 4JH4AE all accept the greener fuel. B5 Biodiesel-compliant engines from 150 to 260 hp include the 4LHA-HTP, 4LH-HTZP, 4LHA-DTP, 4LHA-DTZP, 4LHA-STP, 4LH-STZP, 4BY150, 4BY150Z, 4BY180, 4BY180Z, 6BY220, 6BY220Z, 6BY260 and 6BY260Z.

For boaters who require more powerful 260 to 500 hp engines, the 6LPA-DTP, 6LPA-DTZP, 6LPA-STP, 6LPA-STP2, 6LPA-STZP, 6LPA-STZP2, 6LYA-STP, 6LY2A-STP, 6LY3-ETP, 6LY3-STP, 6LY3-UTP and 6CXM-STP are also compliant. In the 720 to 900 hp range, the 6SY-STP, 6SY-STP2, 6SY655 and 8SY-STP can all operate on B5 Biodiesel.

With any biodiesel blend, there is a chance it may adversely affect certain metal, rubber and plastic engine fuel system components that aren’t compatible with the eco-friendly alternative, Yanmar warned. The fuel can also produce higher moisture content, cold temperature flow and possible damage to painted surfaces. Yanmar owners and boatbuilders should verify that they are using biodiesel-compatible parts for all fuel supply and return systems, as failure caused by using non-compatible materials would void engine warranty, the company stated.

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