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post #1 of 5 Old 03-17-2010 Thread Starter
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Question diesel fuel turning black

Our diesel (red) fuel is turning black, have set up filters as a mini polishing system, and have cleaned the racor filter head, replaced the filters. Any suggestions ... could this be algae?
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post #2 of 5 Old 03-17-2010
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Absolutely. Get a diesel treatment to stop the growth, but if the tank is already gunked up, you will still need to clean the tank and polish the fuel.

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post #3 of 5 Old 03-17-2010
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RICH H cleanup on aisle 2!
Do what Rich says, or look up his posts what he's told others!

Why, why, why?
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post #4 of 5 Old 03-17-2010
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It would help if you stated what type of Diesel engine. Some engines can transfer high pressure engine oil to the fuel system in some type of injectors.
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post #5 of 5 Old 03-18-2010
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First, you need to see if there is an infection...

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Originally Posted by kittie View Post
Our diesel (red) fuel is turning black, have set up filters as a mini polishing system, and have cleaned the racor filter head, replaced the filters. Any suggestions ... could this be algae?
...by running a culture. It's easy.

Sail Delmarva: Diesel and Biocides

Once you have an answer, chose a biocide. You may also need to clean the tank. The polishing filters will try, but cleaning is far better, to make a fresh start.

(when asked how he reached the starting holds on a difficult rock climbing problem that clearly favored taller climbers - he was perhaps 5'5")

"Well, I just climb up to them."

by Joe Brown, English rock climber




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