Biodiesel Question

[DeepFrz]

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[GordMay]

Yanmar Marine USA Corp has endorsed the use of “B5" Biodiesel in its diesel engines. “B5" blended fuel is 95 percent standard diesel with a maximum of 5 percent biodiesel.

Yanmar Marine offers a variety of pleasure boating engines approved for B5 biodiesel use. For the 9.1- to 125-hp range, the 1GM10, 2YM15, 3YM20, 3YM30, 3JH4E, 4JH3-HTE, 4JH3-DTE, 4JH4E, 4JH4-TE and 4JH4AE all accept the fuel.

With any biodiesel blend, there's a chance it may adversely affect certain metal, rubber and plastic engine fuel system components that aren't compatible with the eco-friendly alternative, according to Yanmar. The fuel can also produce higher moisture content, cold temperature flow and possible damage to painted surfaces.

Yanmar says consumers and boatbuilders should verify they are using biodiesel-compatible parts for all fuel supply and return systems, as failure caused by using non-compatible materials would void the engine warranty.

[eyschulman]

First things first- Not all biodiesel is the same somewhat like motor oil- you have to specify type and % of bio component. While your motor may run on what you put in it -it will run better on what the manufacturer specs call for. On some motors you will risk damage to rubber and plastic components-there may also be questions of lubricity which can lead to big problems. There is also considerable debate about just how green bio-fuel really is. Also in a short time even recycled veg. oil will be pricey. Your best bet sail and or use your motor efficiently