Much has been said during the cold days of the risks that low temperatures have for our cars. In addition to snow or ice, cold itself can be a problem and if it is very extreme, it can be generated crystallization or gelling problems of some fuel components.
Despite the fact that in recent months we have undergone a change in the commercialization of vehicles by fuel, the most widespread in our market continues to be diesel due to the longevity of the existing fleet.
Well, the question is clear and simple, At what temperature does diesel freeze?. This very specific question requires a precise answer because without the proper preparation your diesel powered car will go nowhere on extremely cold days. Fortunately, the problem easily avoided by using a fuel additive, which can also reverse gelling once it begins.
Diesel as such does not freeze until we reach very low temperatures, but the problem comes before and is that when we reach the 9 degrees below zero, some components of diesel, such as paraffin, begin to gel by turning into small crystals.
Once temperatures drop between -9 and -12 degrees Celsius, gelling occurs, a problem that ends up clogging the fuel tank and fuel lines. At this point, we may start to have problems and need to tow our car or leave it parked until temperatures return to normal.
Before you get your hands on it, we can drive a diesel vehicle, even in sub-zero conditions, as long as a fuel additive is used. Designed for diesel engines, a fuel additive – like the one offered by many of the distributors in Spain – already mixed in your fuel, reduces its freezing point to figures that can be difficult to achieve “naturally”.
A diesel fuel additive It works by altering the crystals that form in fuel during cold weather. Specifically, the additive reduces the size of the crystals, which prevents diesel fuel from waxing or gelling. The additive changes the chemical properties of the fuel, making it allows flow at temperatures well below zero.
An additive is also useful if the diesel has already gelled. Although at this point it will be necessary to first clean the tank and unclog the fuel lines, a specific additive for this can reverse the effects of gelling in less than half an hour.
We have heard many times that for that the gelling of the diesel does not occur, we can take a small percentage of gasoline in the tank of our diesel car. Undoubtedly this is something that was done in old cars and it worked without problem, however, be careful, because in In modern diesel cars, putting a little gasoline in the tank can be very expensive as we already explained in another article.
Next we leave you the gelling or freezing process of the non-additive diesel.
Ok, now that you understand what happens with diesel, At what temperature does gasoline freeze?. In this same case of extreme temperatures, drivers of vehicles whose fuel is gasoline can be much calmer and it is that for the same to happen, gasoline must reach the 107 degrees Celsius below zero.