how long will regular diesel fuel last in storage - Ford Powerstroke Diesel Forum
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Old 01-28-2012, 07:55 AM
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Question how long will regular diesel fuel last in storage

I know this isn't specifically related to biodiesel, other alternative fuels, but I'm sure there could be some expertise and advise on the matter:

A friend of mine discovered about 300 gallons of some VERY OLD diesel fuel stored underground that he tested for water with the test paste, and it seemed very clean and tested NO water on the stick with the paste. The diesel fuel is of course actually #2 home heating oil and home heating oil #2 is the same as regular diesel #2. Anyway, once a few gallons of this fuel was drawn from the underground tank, it appeared to be so old that it wasn't even dyed red!

The guy who owns the home who switched to gas heating and selling this un-needed oil (for a relatively cheap price), said that the oil was at least 15-20 years old.

If this oil doesn't contain water could it in theory be used in my friend's late 99' 7.3L Powerstroke farm truck? He also has an older Ford diesel tractor on the farm that he wants to try it in.

I've often heard that diesel will pretty much keep indefinitely when it is not exposed to water, and if it is kept bacteria free.

What would cause bacteria in the fuel anyway? And could you still use it if it has bacteria? If diesel fuel truly does store nearly indefinitely in the right conditions, and in a relatively good tank that hasn't started corroding, and isn't filled with rust, etc., then I really wouldn't want to think that the fuel should go to waste if someone could use it. But I wouldn't want my friend to mess up his equipment if the fuel is no good either.......
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Old 02-06-2012, 09:47 AM
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add a good amount of fuel conditioner
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