fuel additves which one or any??

[Gary Fowler]

The old "I have used XXXX for 30 years and never had a problem" doesn't prove anything of value. Would you have had a problem if not using XXXX or other additive.

My opinion on "most anti-wear additives" is that they make the user feel good but not much else which is OK if that is what makes you feel good.
Anti-gel additive is not a engine wear additive and has no effect at all on engine wear. If you are in sub-zero conditions, it makes sense to use it to keep your diesel liquid. In the deep south, not so much.
If you carelessly store your fuel outside for long periods of time without draining off the condensate (if any occurs) then a biocide makes sense, however if fuel is stored indoors there is very little if any condensate formed. My tank is 5 years in the same spot (indoors) and not a drop of water has formed and never used any additives of any kind and no problems with any of my vehicles.

 

[varmint]

I think condensation can occur even indoors where the temp. is relatively stable. I say this based on the algae crude that was in my heating oil tank... a newish 275 gal. tank, located in a back corner of our basement that is very constant temp. with slow swings. Maybe cold fuel being delivered in the winter causes it, but the house air should be dry-ish. Maybe the fuel is at fault? Don't know.