Diesel Fuel Additive During Winter Storage

[janstey58]

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

[janstey58]

I do use the pure peppermint oil, works flawlessly!

[Blaster_Man]

Get the biocide, even with a full tank, you need it, it's cheap insurance.

https://www.westmarine.com

[midnightsadie]

don,t forget the peppermint oil and fresh cab to keep the mice out. your fuel will be just fine.

[Ivylog]

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]

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