Quote:
Originally Posted by Bigdaddybenz
I'm in the southeast now, but when I lived in the northeast and the temperature would drop to the teens or lower, I had an Amoco gas station that sold the best diesel and I would cut it on fill ups with either K-1 white kerosene or K-2 brown..... and NEVER had fuel gel/waxing problems...... In the southeast it's not so easy to do as the temps rarely drop that low but occasionally they do!
So, my ultimate question is when does diesel start to gel. at what temperature and or wind-chill does this occur???
Thanks
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Gel point is the temperature at which diesel or biodiesel fuel freezes solid and can no longer flow by gravity or be pumped through fuel lines. This phenomenon happens when a fuel reaches a low enough temperature whereby enough wax crystals have formed to prevent any movement in the oil. For #2 diesel this is usually around 17.5 °F (−8.1 °C).
For the fuel to become pumpable again, it needs to be brought above the gel point temperature to the Ungel point, which is typically near its pour point. However, most of the waxes will still remain in solid form and the fuel has to be warmed up further until its Remix temperature in order to completely remelt and redissolve the waxes.
Anti-gel additives are therefore commonly added to diesel or biodiesels where cold temperature is expected. They act to reduce the formation of wax crystals in the fuel, thereby lowering the pour point and the gel point of the fuel. Anti-gel additives may not necessarily affect the cloud point.