Back-up electrical generators are, by their very presence, an emergency measure to ensure constant electrical power in times of power outages. The last thing anyone wants is for the generator to fail. Yet this is the most likely outcome if the generator is not properly maintained, and one of the most important ingredients of proper maintainance is the provision of fresh, clean fuel.
However, since the introduction of bio diesel the number of back up electrical generator failures has surged. There appears to be a direct link to engine failure and old “out of shelf life” bio diesel.
Some bio diesels have only a 3 week shelf life, and it begs the question – “when was the last time the fuel was changed?”
If there is a large quatity of fuel it can be less expensive to have the fuel “polished” to remove water and diesel bug growth. It can be a real life saver for hospitals, fire service and other emegency services.