How old is your diesel

Olliejunkie · Jul 7, 2017

I took my my pump to the shop today as the plunger was stuck. Pump guy said there is a good chance it will seize again as it's pretty worn.
I asked if there is a lubricant or additive to help. All he suggested was not to run fuel more than six months old as all of are fuel is 5 percent bio.
My tractors do not run much and could easily have 3 year old fuel in them..I think I will flush out my tanks and only put fresh fuel in as needed at least in the ones with Bosch pumps. What do you all do?

Traditional Farmer · Jul 7, 2017

According to a couple studies I've read 2 cycle oil mixed 1 oz to 1 gallon of diesel fuel will really help lubricating old diesel injection pumps I also add some seafoam now and then to
take out any water.

oliverkid · Jul 7, 2017

Lucas fuel additive is great for injection pump and valve train lubrication.

jasinpa · Jul 7, 2017

had the same problem when i let my 1855 sit for a couple years , payed shop to rebuild pump & ask how to keep it from gumming up
again, there was no good answer but the shop said to use a cocktail of FPPF additives that will help alot also to much additive is
better then to little & will not hurt anything , so ive been using FPPF agripower mixed with other FPPF diesel products , the
problem is theres no one additive that will do everything so mix two that will cover the range of problems youll get from sitting ,
fuel today is just bad. rebuild shop said this is getting to be a big problem & they see it all the time ,they also said if you
where going to store a diesel engine for a long time run straight cocktail of additive throw pump & let sit that way , thats the
best chance to keep it working when its restarted years later

hd6gtom · Jul 8, 2017

Premium grade #2 diesel is the product you should be running, higher cetain rating than old
fashioned #2. Better lubricity, cuts down on smoking engines. Has the additive in it to keep algie
from growing in your tank. It is a different #2 fuel than most truck stop or convienence store
fuel.

Adam Suess · Jul 8, 2017

It seems the problems with diesel started when they took the sulfur out. I've run 10% or more soy diesel for 17 years no problems with it. 3 years is the longest I've had any stored. Animal fat bio diesel is
bad news if it gets cold or gets old, stay away from it. I make sure nothing of mine sits more than a 5 months with out being run. Some of the combines may take a few years to use the fuel up. There i add
Howes additive. On suggestion from a pump shop I have used the Howes additive to un stick several Roosa pumps. Made a little line that I attach to the pump I fill it with additive and then turn the engine so
it sucks through the pump. Then leave it a few days. So far the 3 times I've done it, it's worked. If you turn a stuck bosh pump it's ruined so no go on those. The only real cure is to not let them sit. Get
them out and use or at lest drive them around for a while a few times a year. I prefer the use it option, i find it quite enjoyable.

How old is your diesel

Olliejunkie

Well-known Member

Traditional Farmer

Well-known Member

oliverkid

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jasinpa

Member

hd6gtom

Well-known Member

Adam Suess

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