Quote:
Originally Posted by t walgamuth
In my experience black specs have always been bacterial growth. It is commonly found in fuel. Water causes it to grow. No water, no bacteria. Using biocide has always worked for me. Its available at serious truck repair supply places, and at farm and marine supply places.
Automotive diesel is a lot different than the bunker fuel burned in large marine diesels. Our little diesels would not run on that stuff at all, I don't think.
|
Bacterial growth is gooey, not grainy. Bacterial growth WILL cause the grainy sediment, but it is asphalt. The bacteria break down the fuel leaving asphalt. Treating for bacteria often solves the issue because the chemicals break down the asphalt also.