On 4 Nov 2012 21:44:56 GMT, "DoN. Nichols"
wrote:

On 2012-11-04, Ignoramus24757 wrote:
At an auction, I purchased a 400 gallon diesel fuel tank for $150. I
thought that it was empty, but turns out that it was not, it is
approximately 1/2 full, so maybe 200 gallons.

It contains dyed fuel, so we cannot use it in our semi truck legally.

I do not need as much off-road diesel fuel, and I need to know if it
is winter fuel or summer fuel. I could use some winter fuel, but not
summer fuel, this is why I am asking.

So, how can I tell them apart? Maybe put some in a bottle and in a
freezer? Any signs to watch out for?

Well ... the way I would try to tell the difference is to get a
steel ball bearing and a glass tube just a little bigger. Fill it with
known samples of winter and summer fuel and time how long the ball takes
to reach the bottom -- then compare with the unknown fuel. (I would
expect the ball to drop measurably more quickly in the winter fuel.)
You can also try it refrigerated if you can't tell much difference at
room temperature. But at least all samples should be at the same
temperature for the test.

I will sell most of it, the question is now much.

I hope that this helps -- it is based on suppositions, not
knowledge -- and is at least an easy enough test.

Good Luck,
DoN.
easier to just put a bit in the deep freeze. See if you have jello or
liquid

karl