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janstey58's avatar
janstey58
Explorer
Dec 11, 2017

Diesel Fuel Additive During Winter Storage

Hi All, This is my first year of storing our 2015 Discovery 40E DP with a full tank of diesel fuel in the Midwest. What do you seasoned DP owners do in this situation in regard to fuel additives, especially for anti-algae protection? I found some info on-line that Cummins states additives are not needed and it may void an active warranty if used. I have also heard horror stories from one owner about algae problems causing big $$$ repairs. Comments? Thx, Jeff
Class A

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  • Blaster_Man's avatar
    Blaster_Man
    Explorer
    Dec 11, 2017
    Get the biocide, even with a full tank, you need it, it's cheap insurance.

    https://www.westmarine.com
  • midnightsadie's avatar
    midnightsadie
    Explorer II
    Dec 11, 2017
    don,t forget the peppermint oil and fresh cab to keep the mice out. your fuel will be just fine.
  • Ivylog's avatar
    Ivylog
    Explorer III
    Dec 11, 2017
    In 40+ years of having diesel vehicles only once have I gotten "bad diesel" and I buy from whoever has the cheapest price. Unfortunately my DP has sat for the last six months and other than parking with the tank full I do not worry about it. I also do not crank it up until the day before I plan on leaving in 14 days.
  • jplante4's avatar
    jplante4
    Explorer II
    Dec 11, 2017
    I put a bottle of Power Service injector cleaner in about every other tankful and one into the last tank. You need to drive it for a while to get the stuff into the injectors. On that last fillup I also use Power Service anti-gel. Probably not needed on Cape Cod but it's cheap insurance. Wal*Mart carries this. They also have a biocide, but if you keep the tank full you shouldn't need it.

    Power Service

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