What diesel conditioner to use for storage??

I use Biobor MD in every tank for water and gelling, and Biobor JF for bacteria/fungus and a full tank if I'm storing the coach for a while.
Good Luck!

I would recommend that any stored diesel not contain biodiesel. It is said to degrade much faster than regular diesel and to attract and hold more moisture.

I use Howe's Lubricator for winter storage and will start adding a biocide in also. After a ruined vacation because of nasty stuff growing in my fuel....I wont chance it anymore. The additives are FARRRR cheaper than a trip stoppage

This Russian roulett for your expensive fuel system. Sure, people store for months and have no problems and then there's the guys who have to spend $10,000+ to replace their injection system. Using a biocide is cheap insurance.

LetsRV wrote:
Going to put the ol motorhome in storage soon. Will be there for about 5 months. I know I should use something in the tank to maintain the diesel (keep from geling or growing little thingys) while it sits.

Sooo, what do you use???

I use Sta-bil which is available at walmart. They have a version for regular gas (red color) and diesel fuel. For storage they recommend you double the dosage. Everything starts up without problems after winter. After putting the sta-bil in you need to run the engine to get it all the way through the injector system before shutting off.

Gonna be hard to beat Sea Foam. I swear that stuff is magic. According to their web site, when used at a ratio of 1oz to 1 gallon it will de-ice, remove moisture and deposits, and preserve diesel fuel for up to 2 years. I've used it my gasoline engines with great success and just recently used Sea Foam to repair the gummed up carburetor on my RV generator. And no, I don't get paid to advertise for them either.. LOL!!

http://seafoamsales.com/sea-foam-diesel-engine/

"Little Thingys" will only grow at the water/fuel interface. If there is no water in the tank, nothing can grow. If there is water in the tank, it should be drained and cleaned, as water also causes rust and rust will eat a hole in the tank bottom!
The tank should be filled full, IMO. An air space can contribute to condensation, creating water in your tank. If the tank is filled on a warm day, it should not expand enough to overflow.
You CAN put Sta-Bil (or some other preservative) in the tank for storage, but it is not needed. Diesel fuel does not rot and turn to varnish like gasoline does.

I have always added biocide for winter storage. Diesel does expand when it warms up so fill to 7/8 to leave room for expansion.

I have been winter storing boats and MOHO's for 30+ years with no problems by simply using a full tank with no additives for diesel and stabil for gas engines.

Lou
05 Travel Supreme Envoy

Fill the tank to prevent condensation and forget about it ..lots of farmers do the same with no problems. Oregon valley weather is mild gelling isn't a problem since you aren't driving it in cold weather .. If it gets cold and gels .. It will not be when you use it .