[MBZ] Diesel fuel additives

[Anthony Galioto]

With winter on the way my 240D will be in it's den sleeping like a bear all
winter. I am thinking that I should add to a full tank of diesel the
following additives. PRI-D (a fuel stablizer) and PRI-OCIDE (a biocide).
Has anyone used these products? If so what are your opinions are there any
downside to using the above additives?
Anthony