Good running to bad in an instant

[Shawn T. W]

That black slimy gunk is what I believe is the "residue" of little creatures that live off the bottom of the diesel, but on top of a layer of water ... A biocide or a 10% mix of gasoline will kill them ...

https://www.orangetractortalks.com/forums/threads/diesel-mushrooms.72466/

As far as additives, what are you guys using? thanks

I use HotShot products ...

Summer

Everyday Diesel Treatment (EDT) | Top Diesel Fuel Additive

Improve power, prevent rust, boost cetane up to 7 points & more with Everyday Diesel Treatment. This EDT fuel additive is recommended for all diesel engines.

www.hotshotsecret.com

Winter

EDT+ Winter Defense | Hot Shot's Secret

EDT+ WINTER DEFENSE is our EVERYDAY DIESEL TREATMENT with added anti-gel properties. Minimize the size of the wax crystals. Purchase here!

www.hotshotsecret.com

Plus add a half does of ...

LX4 Lubricity Extreme: Ultra-Low Sulfur Diesel Additive

Increase fuel lubricity, protect fuel pumps and injectors from wear and failure, & lubricate the upper cylinder with LX4. Purchase LX4 here!

www.hotshotsecret.com

Once a year add

Hot Shot's Secret Diesel Extreme | Diesel Extreme Fuel Additive

Save money and improve performance of your diesel vehicle with Hot Shot's Secret's Diesel Extreme fuel additive. Try it today and see results!

www.hotshotsecret.com