I received a response today from K100 Fuel Additive regarding the greyish substance that was found inside the fuel filter. I will post it for all to read.
To: [email protected]
Sent: Thursday, February 01, 2007 1:19 PM
Subject: K100 Diesel Fuel Treatment
I inquired about your diesel fuel treatment product a few weeks ago. Several people have tried the product out. The question I have is does the fuel treatment turn the fuel filters grey? The people who have tried the product have stated that their fuel filters have a grayish colored film on the fuel filter element. Is this normal? Does this grayish substance clog the filter? Your help will be greatly appreciated in this matter.
I really have no idea how to respond, but let’s see if we can figure it out. K 100 will dissolve accumulated gums and varnishes in an older fuel tank. These gums often impart a browning or yellowish tint but only have a color, not a substance. We’ve never seen grey. Trapped in the gums are hard particles or skeltons from dead microbes. When the gums are dissolved these hard particles flow to the fuel filter. Microbes are blackish, but generally appear in the filters as a gooey mass. Rust would appear as browning metal flakes. These things will clog a filter. In fact we tell agricultural customers to anticipate changing filters after a few hours.
Are we just dealing with a grey color on the filter material or is there some substance to it- flakes, small particles (sand), gooey mass, or what?
You said you noticed a grey color to the fuel filter. Is this one of the clear bowl type filters or did you cut apart the canister type.
You said you had a number of people using K 100.
Did they all have the same kind of equipment?
Were they all of similar age?
Did they all fuel from the same supplier?
What is the color of your supplier’s new ULTRA Low Sulfur Fuel—different suppliers are using different color dyes so they can tell one batch from another at the terminal.
Did all your users experience the same coloration?
Did everybody start with a clean filter before using K 100, or are we dealing with some accumulation before K 100?
Can you send us one of these grey filters?
Sorry I can’t specifically answer your question. We’ve learned that fuel is not a commodity and that there are variations between one supplier and another.
What does everyone think? Can anyone who had problems with the product respond to this E-mail to K100 and see what they have to say or what they can do?