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  #1  
Old 02-02-2011, 06:28 PM
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Change Fuel Filter? Use Biocide?

Hi,
I have an 83 Diesel 300D. I don't drive it that far, that much. Want to keep it up. Should I change the fuel filter when it looks black?...or change in terms of miles. Also, just another question....should I use a "diesel fuel Biocide" every so often to keep the tank clean?
I had bought BioKleen by Power Service in the past, now I lost my job, and wondering if it's important to get this....
Thanks
Lindajane
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Old 02-02-2011, 07:01 PM
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I want to say the interval is 10k miles for fuel filters, but it also hinges on whether you need new ones or not. If you get clogged before that, obviously you're going to have to change them. Keep and eye on the prefilter, and if it's looks like a majority of the filter inside is getting gummed up, I'd change the filters. Generally I look at mine everytime I change the oil.
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Old 02-02-2011, 08:25 PM
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Hey Linda,
If the little plastic filter turns black, its probably bugs unless you are using biodiesel.
When it goes black, best add the biocide, run the car to get it through the system, sat 100 miles of normal use & then change both filters. If this happens regularly, change your fuel supplier, that is how the bugs get there in the first place.
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Old 02-02-2011, 10:09 PM
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I add one oz of Startron (and 2 oz two cycle oil for lubrication) every tankful. I began two years ago when I had black deposits on the filter. No problems since. I change the filters when they start to get blocked. Haven't changed any since I started the treatment plan.
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Old 02-02-2011, 11:55 PM
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Use a biocide that also has an Enzyme. The Enzyme eats up the dead bodies so the will tend not to plug up your Fulters.
There should be more than a few threads on the above.
Buying stuff to kill off what is in the Tank may be expensive right now but a plugged filter can stop your Car in the very worst place. And, changing Filters can also be expensive.
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Old 02-03-2011, 01:22 AM
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Location: Metro Detroit, Michigan
Posts: 17,350
Answer

Diesel owners need to know fuel data
http://www.peachparts.com/shopforum/showthread.php?t=205368

Emptying the fuel tank
http://www.peachparts.com/shopforum/showthread.php?t=205878

Fuel Gauge and Sending Unit threads
http://www.peachparts.com/shopforum/showthread.php?t=190632

Fuel Sender 85 300D- Cleaned (Pics)
http://www.peachparts.com/shopforum/showthread.php?t=189366

MB diesel filtration, how it works.
http://www.peachparts.com/shopforum/showthread.php?p=1055075

fuel filter change
http://www.peachparts.com/shopforum/showthread.php?p=824006

Diesel filters, no tank strainers please.
http://www.peachparts.com/shopforum/showthread.php?p=1046422&posted=1

Primary filter melted by biodiesel?
http://www.peachparts.com/shopforum/showthread.php?t=213712

I'm baffled and at wit's end!?!?!?!?!
http://www.peachparts.com/shopforum/showthread.php?t=138961

Algae/Fungus fixation...
http://www.peachparts.com/shopforum/showthread.php?t=138733

Biobor, what is it, why do I need it???
http://www.peachparts.com/shopforum/showthread.php?p=723857

Filters, Fungus, Biocide, etc.
http://www.peachparts.com/shopforum/showthread.php?p=823378

Algae Clogged Filter Pic StarTron WORKS !
http://www.peachparts.com/shopforum/showthread.php?t=138728

Braided fuel lines weep. 1984 300TD turbo
http://www.peachparts.com/shopforum/showthread.php?t=158107

300SD Fuel Filter Replacement Instructions
http://www.peachparts.com/shopforum/showthread.php?t=105344

Check out this fuel pickup screen
http://www.peachparts.com/shopforum/showthread.php?t=140961




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