Diesel Digest

Using biodiesel blends can mean cleaner seas for years to come

Diesel Digest: by Capt. Jeff Werner Working aboard a yacht should make every captain and crew member an environmentalist. After all, without clean seas what yacht owner or charter guest…

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Diesel Digest: Frequent use of biocides negates its effectiveness

Diesel Digest: by Capt. Jeff Werner For most engineers and captains, the gospel when topping off a diesel tank is to mix the required quantity of the additive Biobor JF…

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Diesel Digest: The story behind dyed diesel

Diesel Digest: by Capt. Jeff Werner In Belfast, Northern Ireland, a man with a previous conviction for an IRA attack on police was found guilty of fuel laundering. Customs officers…

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Diesel Digest: When did yachts start using diesel engines?

Diesel Digest: by Capt. Jeff Werner The 1890s were heady times for Rudolf Diesel. He was a successful young engineer living in Berlin with his wife and three children. After…

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Law intended to clean exhaust unintentionally hurts engines

The worldwide effort to combat global warming is part and parcel to the daily operations aboard a yacht. Both the International Maritime Organization (IMO) and the U.S. Environmental Protection Agency…

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Fuel turnover does not ensure cleanliness

Diesel Digest: Capt. Jeff Werner Fuel degradation is commonly associated with the amount of time fuel has been sitting in a yacht’s tank. The assumption is that a “dock queen”…

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New technology lets engineers test fuel onboard

The cornerstones of a diesel fuel preventive maintenance program are: sampling and testing to assess the quality of fuel in the tank, separation to remove water from the fuel, filtration…

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Fuel is a valuable asset; treat it that way

High-pressure common rail (HPCR) engines are now the norm for all new diesel engines that are installed aboard yachts. The need for HPCR engines has been driven by strict emission…

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Various ways to remove water all amount to same thing: Do it during regular maintenance

By Capt. Jeff Werner Water is the most damaging contaminant found in diesel fuel. Growth of bacteria, mold, yeast or other types of fungi in a diesel fuel tank cannot…

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Solar powered fuel system onboard

Imagine you are the chief engineer aboard a superyacht, and the owner corrals you one day to talk about the new island hideaway she just purchased in the Bahamas. Her…

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