Fuel Additive When In Storage

I use Bio Bor JF all the time, that's what Cummins recommended before they came out with there own.. We stay in the South 5 or 6 months at a time and we've not had any trouble.. Mike Mathews..

Sta-Bil helps remove water, but is not a biocide...you need a biocide, they can be found at most marine stores.

I've had good luck with Power Service Diesel Fuel Supplement. I run it all the time.

This is the best! I've been using it for 30 years in my diesel powered boats and is fine for the motorhome!
http://www.biobor.com/fuel-additives-products-biobor-jf-index.php

I use a lot of stay bil , works for us --happy-camping

We use the one Walmart sells.

Valvtect Micro-biocide is what works for me here in humid S. Florida. Many fuel docks treat their tanks with this product

It is very popular with boat operators and can be bought at any Marine store down here.

biocide is the way to go, as many have said.

We use a biocide. There are a few available but have to hunt for it around here. About thirty bucks from a truck repair center, for enough to treat 100 gal tank four or five times. Don't remember the name.
We keep ours in inside storage and it is exercised regularly so maybe it is not as necessary. Don't take but one time though to mess things up. Try not to have much biodiesel, in the tank but a full tank, when it is parked. Humidity is pretty high here but not as high as Florida.

1) I park mine with tank full, so less air(oxygen)is in tank.
2) I run a biocide.
3) I park with battery disconnected