Here's one of their ads:

$1.00/Gallon
Old diesel has algae growth/water in it ? It will stop your engine! Also could damage your injectors..injector pumps and cost you thousands in repair. Let us polish your diesel for only $1.00/gallon and save you thousands in repair bills.813-601-2922

There are 8760 hours in a year and the average pleasure boat is only used 300 hours a year. During the 8460 hours the vessel is sitting idle, the oxygen and moisture in the fuel tank is feeding the algae growth.

Algae only grow on the fuel-water interface. If the engine is run regularly, it's VERY rare for algae to accumulate. The fuel filter will stop any. I suspect a lot of IPs have been needlessly replaced.

IP's?

injector pumps

Just recently on the bus boards there have been a couple of people that have bought buses that have been sitting for several years or more. One sat for 11 years. They fired them up an drove them home with no problems although the consensus is to first change the filters and add new fuel or a biocide to the tank just to be on the safe side.

quote:

Originally posted by Rusty:
I have yet to figure out what "fuel polishing" really is.

As I recall from my sail boating days, fuel polishing was simply an additional very fine micron (<1 micron?) filter installed after all the OEM fuel filters in a marine/yachting installation. Lots of folks used old Frantz TP roll bypass filters and similars in the boost pump pressurized loop somewhere to 'polish' their diesel on a bypass stream. They claim that some crud did pass the expensive Racor's and other filters upstream in their fuel system.

quote:

As I recall from my sail boating days,

takes a wind boater to know about stink pot fuel, go figure!

quote:

Originally posted by Dick Dubbs:

quote:

As I recall from my sail boating days,

takes a wind boater to know about stink pot fuel, go figure!

I suppose I should have clarified, my sailing days on a Catalina 30. It had a 25hp Kubota auxiliary engine. It was my interfacing with all the power boaters where I learned of fuel polishing. I knew some hard cores that sailed boats in excess of 30 feet -without the benefit of an auxiliary engine for getting to the dock. When you see a guy finess a large sail boat to a dock in decent winds with no motor, you realize the difference between a true sailor and the rest of us.

My friend - the Diesel truck owner - swears by this product : http://www.dieselperformancepr...ts.com/pureflow.html
Says his problems have been solved and he also uses them on his off road construction CAT machinery.

quote:

Originally posted by Rusty:
Algae only grow on the fuel-water interface. If the engine is run regularly, it's VERY rare for algae to accumulate.

Our jets were run 12-18 hours per day, and we still had to use Biobor. We did regular samples to monitor the strength of dosage.

However, I don't know if our evil stuff was algae or what. It was referred to as microorganisms.

quote:

Originally posted by Kevin:

Math check please. .

Do I need to add 2.5 quarts of 2 cycle oil in my 150 gallon diesel tank?

Yep

quote:

Our jets were run 12-18 hours per day, and we still had to use Biobor. We did regular samples to monitor the strength of dosage.

I think JP4/JP5 were more susceptible, and the extreme environs turbines encounter necessitate keeping water at bay. Ice is as dangerous as microorganisms.