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post #9 of Old 09-30-2019
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Re: Diesel Fuel Treatment: Multiple Questions

Originally Posted by hildamman View Post
I use K100, it turns water into a suspension into the diesel, so it just burns. Not sure if it contains a biocide.
Depending on how fast you consume your fuel, emulsifying the water may be the WORST thing you can do, as it increases the surface area of the droplets where the bacteria can have an orgy. In fact, some products actually have demulsifiers to prevent this. If you're a big stinkpot going through hundreds of gallons of diesel, emulsifiers could be good. But if you're a weekender on a sailboat going through 25 gal. a year, no so much.

@pdqaltair - Based on your test results, I'm interested in adding Star Brite Bio Diesel to my biocide mix, but it looks like Star Brite no longer sells it:


I don't know how long ago they discontinued it - I'm afraid if I find "old stock" somewhere it may be expired. Do you know if Star Brite come out with a replacement product that uses the same thiocarbamate pesticide?

Rick S., Swarthmore, PA
USCG Certified Captain, OUPV and 50 Ton Master
ASA Certified 101/103/104/105/106

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2001 Catalina 34MkII Tall Rig Wing Keel Breakin' Away, Universal Diesel M35B, Mantus 35 lb. anchor, sailing out of Rock Hall Landing Marina

Last edited by TakeFive; 09-30-2019 at 11:29 AM.
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