Found a good article on clouded fuel click here.
Cloud point is defined as the temperature at which waxy solids first appear during the cooling of diesel fuel. It is a quality control test that has been in use by petroleum refineries for well over 50 years. Worldwide, a significant majority of refineries rely on this test for determining diesel fuel operability in cold weather. Cloud point is the preferred test due to its fail-safe nature in predicting operability, quick analysis time and excellent precision. Besides cloud point, other operability test methods are available; however; their reliability is significantly lower and they are impractical for field use.
What does diesel fuel look like at or near its cloud point?
Like mine
Once the fuel temperature drops to cloud point, solids appear immediately.
Not in my Howe's treated #2 so it must be doing something..
Got this off the Schaeffer site:
When added to the diesel fuel before the diesel fuel has reached its cloud point, it prevents the formation of wax crystals.The anti-gel additive system in Winterized Diesel Treat modifies the individual wax crystals by encapsulating and dispersing them as they are formed. This drastically reduces the size of the wax crystals and prevents the growth of larger wax crystals and their adhesion to each other. This in turn allows the wax crystals to flow through the fuel filters and lines into the combustion chamber with the diesel fuel. By the addition of Diesel Treat Winter to the diesel fuel before it has reached its cloud point, the gelling point of the diesel fuel will be lowered an average of 15°F to 25°F below the original gelling point of the untreated diesel fuel.
Unless I am reading this wrong additives do not lower the cloud point but reduce the size of the crystals in the cloud which is what I am seeing(cloud with no visible crystals). I have also exceeded the 25* limit of there additive as the fuel was good for 14*f and it is now -20*f which is 34*f difference.
I think I might pick up some PowerService Arctic Express and try the jar test again on the #2
Arctic Express® not only modifies the shape and size of wax crystals which fall out of solution as the temperature decreases, but also prevents the wax crystals from settling to the bottom of fuel tanks during storage. Arctic Express® lowers the CFPP of No. 2 diesel fuel as much as 36°F. and prevents fuel gelling in temperatures as low as -40°F. Arctic Express® also provides anti-icing and lubricity benefits that are unobtainable with blended fuels.
We will see if it prevents the separation as it claims "prevents the wax crystals from settling to the bottom". The Howe's site shows that treating +15* fuel with there treatment will lower it to -8* and it did way more than that. We will see if PowerService will do what they claim.
