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
Does it still smell like diesel? If it does use it.
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.
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.
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.
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
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.
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