At this time of year, those who use unheated blends will start to notice that their fuel becomes cloudy and starts to clog the filters.
This is because of the high melting point oils (tallow, huydrogenated oil) cooling below their melting point.
There are easy remedies:
1. Cold filter your oil. With the oil at the coldest of the day (early morning?), filter the oil. This will leave any oil which has a melting point highrer than the temp of the oil, in the filter. When the filter fills up with solid oil, use an electric immersion filter to melt it into an open topped bucket. This effectively removes the high MP oils from the fuel system. If there is a cold snap, the oil in your tank may have some high MP oils, not removed at the filtering temperature - in this case, blend in more liquid fuel.
2. Make the oil into biodiesel, (or just the high MP oil) as the MP of biodiesel made from the oil is usually 10 - 15'C lower than the MP of the source oil.
3. Heat the blend using HIH or HOH fuel lines, or a heat exchanger in the engine bay.
4. Buy a Gasser
Just foolin
