Motor Oil Info

Diesel applications can be especially sensitive to cold weather issues. As the temperature drops, the wax naturally found in diesel fuel begins to form crystals. The point at which wax crystals form is known as the cloud point. These wax crystals eventually clog the fuel filter and starve the engine of fuel, preventing it from starting.

While low quality fuels may form wax crystals in temperatures as warm as 40f, most fuels have a cloud point near 32f. The point at which the wax crystals clog the fuel filter is known as the cold filter plugging point (CFPP). AMSOIL Cold Flow Improver (ACF) fuel additive lowers the CFPP by as much as 34 degrees in ultra low sulfur diesel fuel (ULSD).

Diesel applications can be especially sensitive to cold weather issues. As the temperature drops, the wax naturally found in diesel fuel begins to form crystals. The point at which wax crystals form is known as the cloud point. These wax crystals eventually clod the fuel filter and starve the engine of fuel, preventing it from starting.

While low quality fuels may form wax crystals in temperatures as warm as 40f, most fuels have a cloud point near 32f. The point at which the wax crystals clog the fuel filter is known as the cold filter plugging point (CFPP). AMSOIL Cold Flow Improver Fuel Additive lowers the CFPP by as much as 34f in ultra low sulfur diesel fuel.

AMSOIL Diesel Recovery (DRC) is an emergency diesel fuel additive that quickly dissolves the wax crystals that form when diesel fuel has surpassed its cloud point. It liquefies gelled diesel fuel and thaws frozen fuel filters, avoiding costly towing charges and getting diesel vehicles back on the road. Diesel fuel quality varies from one filling station to the next, and low-quality fuel can have a cloud point as high as 4.4c (40f), making Diesel Recovery a necessity for diesel operators in cold-weather climates.

One traditional solution to cold-weather problems in diesel engines is the use of #1 diesel fuel, which is diesel fuel diluted with kerosene. While #1 diesel fuel has an advantage in low-temperature operability, there are also several disadvantages. The energy content of #1 diesel fuel is about 95 percent of #2 diesel fuel, resulting in reduced fuel economy and less horsepower. In addition, the kerosene used in #1 diesel fuel provides less lubrication for the fuel pump and fuel distributor, increasing the likelihood for wear on these critcal components.