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Can I safely use two year old ASTM B99?
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A friend offered me 15 gallons of ASTM B99 for free that he purchased in '07. It has been sitting in his garage in sealed containers. I said I would take it off his hands but am not sure that B99 keeps for that long. Does it? What steps should I take before using it...if the consensus is that I can use it safely?


______________________________________
'97 Ford F-350 7.3L PSD - Plant Drive kit
'84 Mercedes Euro 300D NA - Custom two-tank
Running on
vegoil and biodiesel since May 2006

 
Location: SF Bay Area | Registered: February 14, 2003Reply With QuoteReport This Post
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Does it still smell like diesel? If it does use it.
 
Location: West Michigan | Registered: April 26, 2006Reply With QuoteReport This Post
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I'd be concerned if it smelled like diesel, paint thinner, kerosene or any other petro product, which can indicate destructive oxidation, i.e. 'going rancid'. Degradation usually results in acidification. Place a dull penny in a sample of the BD and see if it becomes bright and clean, thus indicating acidification.

If it smells like fresh biodiesel then it's probably OK to use.



 
Location: coldest N.America | Registered: May 03, 2005Reply With QuoteReport This Post
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I imagine you would be able to smell the diesel that is used in B99. The smell of B100 depends on the type of oil used.

From time to time I have smelled biodiesel that that has sit for a long time that has the smell of rancid oil. I suspect this is an indication that it is changing. I have always used it with no problems.
 
Location: Southside | Registered: January 12, 2010Reply With QuoteReport This Post
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For petes sake it's only 15 gallons, put five gallons in per tank full and it aint gonna hurt a damn thing, even if it did smell a little like paint thinner, just burn a couple gallons at a time.
 
Location: West Michigan | Registered: April 26, 2006Reply With QuoteReport This Post
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I had some year old bio in the back of the shed-100lts.I decided to try washing it and see what the pH of the wash water was-first wash (10 Lts water) gave pH =3 .Took seven more washes to get it back to pH =7.I was surprised it had got that acidic ,I did notice it smelled slightly different to normal,but nothing rancid
 
Location: UK | Registered: October 14, 2008Reply With QuoteReport This Post



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Anytime the question of safety is raised there will be differing and sometimes conflicting comments and opinions. Everyone has their own definition of "Can I safely use...".

The better question to ask is "Would you use this fuel in your vehicle?"

This forum has a Poll function that can be useful for such questions.



 
Location: coldest N.America | Registered: May 03, 2005Reply With QuoteReport This Post
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