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Old 12-31-2010, 04:27 PM   #1
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Diesel Fuel Stabilizer?

Hey all,

Just moved from a gasoline Class C to a DP. I always used gasoline stabilizer when storing the RV for the winter. Is there Diesel Fuel Stabilizer and is it recommended?


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Old 12-31-2010, 04:34 PM   #2
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Yes... I used it this year. The automotive stores carry it. I will have to look at the name when I go home. I had to try more than one store to find it.

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Old 12-31-2010, 06:41 PM   #3
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Had a cupla desiels Motorhomes. Used to go snowmobiling ;;; Was told DO not use any addative in the fuel, Except In Below freezing Add the reccomended Anti jell; And if you are moving that is not nesecary; Call the manufacture. Cummings, or Cat ask them about addatives. Then pass it on ;; Life is good
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Old 12-31-2010, 07:50 PM   #4
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Diesel is different than gas in a few respects: Water and Microbes. The water can condensate in the tank with temperature changes and is most often collected in the fuel water seperator filter. Make sure that you drain the water, if it fills, it can stay in the fuel and is potentialy deadly to a diesel engine. The Microbes can grow in diesel fuel and can clog your filters to the point you may have to change them several times. The modern treatments both evaporate excess water and kill then prevent microbes. The microbes are usually only a problem in hot and humid conditions but can happen if the tank is subject to varying temperatures.

<ake sure you get a treatment specific to diesel fuel. It should be listed on the label.
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Old 12-31-2010, 09:45 PM   #5
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Cummins recommends a product by fleet guard "winter conditioner" which is anti gel..
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Old 12-31-2010, 10:14 PM   #6
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When storing the motorhome for more than 30 days I always fill the tank and add BioGuard. You can purchase it at marine stores.
"BioGuard is an EPA registered water soluble microbiocide that effectively kills bacteria and fungi that grow in diesel fuel, heating oil and lubricating oil. BioGuard also prevents bacteria caused filter plugging and bacteria caused corrosion of metal surfaces."
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Old 12-31-2010, 10:55 PM   #7
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Sta-Bil and Amsoil make a diesel stabilizer. I keep my tank full during storage and use the Amsoil diesel stabilizer. Have been using it for at least 20 years and will continue to use it. Be sure to use a stabilizer for diesel. NOT FOR GAS. Also since you are new to diesel engines, do not use gas engine anti-freeze. Diesel engine's use a different type of anti-freeze.
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Old 01-01-2011, 06:35 AM   #8
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You could be really sorry if you don't prepare your fuel for storage. I bought my stabilizer and microbe killer here. They explain why this stuff is needed on the web site. I used PRI-D and PRI-OCIDE when I winterized this year. Repairs could be expensive compared to the cost of preparing your fuel.


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