uncertain if it’s related to ULSD, an
additive, or something that occurred
during the transition from LSD to
ULSD. In Europe, where ULSD has
been in use for more than a decade,
there appears to be no corrosion
issues, according to a report in Fuel
Oil News. In the U.S., boat repairers we consulted have not seen indications of corrosion problems. The
most prudent action is to keep tanks
clean and water-free, so there’s nothing with which the fuel can react.
Finally, the refining process
used to lower the sulfur content of
ULSD affects the naturally occurring paraffin (wax) in diesel fuel,
which causes it to gel more readily
in cold weather. For the vast majority of boat owners who lay up their
boats over the winter, cold-weather
starting isn’t a concern. For anyone
who plans to use their diesel in winter, distributors compensate for colder temperatures by selling
a winter blend. If you still have a summer blend
in the engine, you’ll need to use a cold-weather
additive. Use only the recommended dose; too
much additive may make gel problems worse.
Keeping Diesel Fuel Clean
Keeping fuel clean has always been the key to
maintaining a healthy diesel. Here are four important considerations to keeping fuel clean:
1. Start by adding clean fuel, which means buying
your fuel from a reliable source. Fuel that’s been
languishing for months in an underground storage
tank is more likely to have water, rust, and even bugs.
2. Microbial bugs can’t live without water. Keeping
the tank topped off minimizes condensation. Check
your fuel separator routinely for water, which
can signal a problem that will need correction.
3. Check to see if your fuel distributor
uses biocides in its fuel. If not, add a biocide at the recommended dosage.
4. Change filters at least annually. Slimy, smelly
filters are indications of a microbial fuel infection.
If filters, especially secondary filters, look dirty,
consider having your tank emptied and cleaned.
Otherwise, you’ll be fighting an uphill battle.
to be cleaned more often to prevent filter clogging
and corrosion. Keep water out of your fuel by
keeping the tank topped off to reduce conden-
sation, buying fuel from a reliable source, and
checking your water separator routinely. If water
starts to appear, take steps to clean your tank. If
you buy a boat that’s been sitting unused for an
undetermined amount of time, consider having
the old fuel in the tank commercially polished.
AFFORDABLE HARD TOPS
An innovative system that achieves design/build versatility, dynamic
aesthetics & sustainability combined with unusual affordability
• 10 year warranty
• Easy efficient installation
• Unlimited design flexibility
• Concealed LED lighting available
• Existing side curtains can be re-installed
• New side curtains can be attached
It’s like having a brand new boat!
Easy to see why HARD TO TOP is first choice of boaters everywhere!
For more information:
68 | BoatU.S. Magazine
OCTOBER | NOVEMBER 2011