I am now on my third Duramax truck. None have ever had a tank of fuel last more than 10 days. I have never used an additive of any type and never had a fuel problem. I only buy from busy truck stops.

Now my truck will spend a significant amount of time with the same fuel in it. I just bought a Impala to drive to work, 618 miles one way. I work off shore.

The truck will sit the two weeks I am off shore at home. When I am home I will now only use it to put my boat in the lake the day I get home and take it out of the lake the day before I go back to work. I will also use it to tow my RV once or maybe twice a month.

Should I use some type of fuel stabilizer like you do with a gas engine that will sit for a few months? If so what should I use?

Thanks

If you grab a stabilizer off the shelf, just be sure it says ok to use in diesels. I would use something. Diesel really doesn't have a long shelf life.
I know our stabilzer is good for both gas and diesel. Our diesel concentrate fuel additive(lubricant, cleaner, and stablizer) would be a good option as well, just not found at the busy truck stops.:(

I have used Stanadyne since new, and I have had great luck with it!
Just be sure it is an alcohol free fuel additive.

After all that I have read recently, my biggest concern would be about bugs. I would use biocide.

Agreed that your greater concern, if any, is bacteria growth. Gasoline fuel stabilizers are for gasoline, not diesel. You want a biocide if you put in anything.

Thanks.

That is why I am asking, I knew gas fuel stablizer was not what I wanted. I have just never had to let diesel sit before.

I knew stuff would grow in diesel, that is why I always use high turn over truck stops.

In the old days the good days sulfer acted as a natural biocide. now a days usld ?. Id run some howes, power service and some biocide, w/condensation (not as bad out of a plastic tank like on the d maxes worse on a steel tank) you will get some moisture involved.

I would agree and suggest using a fuel additive with agressive water emulsification such as Primrose 405C or FPPF. If you prevent free water, you will have no microbials and eliminate the need for the use of "poisons" (which biocides are the pretty name for). These additives also have a fuel stabilizing affect, both enabling diesel fuel stability for up to 2 years. Plus corrosion prevention, detergency, cetane boost, etc.. The other additives mentioned are readily available but are rather watered down (or rather kerosened down) civilian versions..
I am admittedly biased, but it is from many years of experience (and scar tissue from having used some additives) and sharing information from having treated millions of gallions, literally, of diesel fuel..
George Morrison, STLE CLS