What is the difference between No. 0 and No. -10 diesel?

[OAndres]

The differences between No. 0 and No. -10 diesel are as follows: 1. Different freezing points. Diesel is graded by freezing point, with light diesel having six grades: 5, 0, -10, -20, -35, -50. The freezing point of No. -10 diesel is -10 degrees Celsius, while that of No. 0 diesel is 0 degrees Celsius. 2. Different applicable temperatures. The selection of diesel should be based on the temperature during use. Choose No. 0 diesel when the temperature is above 4°C; choose No. -10 diesel when the temperature is between 4°C and -5°C. If the selected diesel grade is higher than the above temperature, the fuel system in the engine will form wax, block the oil circuit, and affect the normal operation of the engine. 3. Different compositions. In terms of composition, No. -10 diesel has a lower paraffin content than No. 0 diesel, and its thickening temperature is also lower, allowing it to be used normally at minimum temperatures above -5°C.

[DelChristopher]

We truck drivers all know that the biggest difference between No. 0 diesel and No. -10 diesel is their cold resistance. No. 0 diesel can only withstand temperatures above 0°C; if it gets any colder, it tends to form wax, clogging the filter and leaving the truck stranded. No. -10 diesel can handle temperatures down to about -10°C, making it particularly suitable for northern winters. However, it contains anti-gelling additives, which increase the cost and make it significantly more expensive. For long-distance trips, I always check the weather forecast in advance. If the temperature is above zero, using No. 0 diesel saves some money, but if there's a sudden temperature drop, I have to switch to No. -10 diesel. Otherwise, dealing with wax buildup in the fuel lines can be a real hassle. It's also important to remember not to mix different grades of diesel, as this can affect the engine's combustion efficiency.

[KathrynAnn]

How ordinary household diesel vehicle owners should view the difference between No. 0 and No. -10 diesel: No. -10 has a lower freezing point, providing higher driving safety in winter. No. 0 is about 0.7-0.8 yuan cheaper per liter, but it tends to solidify when temperatures drop below zero, potentially clogging fuel lines and causing the vehicle to stall abruptly. Gas station staff here recommend switching to No. -10 every November and using it until spring warms up. Remember to regularly check the water-fuel separator, especially during sudden temperature changes. Once, I forgot to switch diesel types and got stranded on the highway – the towing fee alone cost me over a thousand yuan. Low temperatures cause significant engine wear, so using quality fuel is also a way to protect your beloved vehicle.

[OTalia]

Diesel fuel grades may seem simple, but there's actually more to them. The 0# grade means the freezing point is at 0°C, typically used in summer and autumn. The -10# grade lowers the freezing point to -10 degrees, suitable for colder seasons. Beyond temperature adaptability, their different additives result in varying combustion characteristics. From my experience, if you frequently operate in areas above -5°C, treating 0# diesel with anti-gel additives is more economical. For friends in Northeast China, using -10# year-round is more reliable. Additionally, keeping the fuel tank clean is crucial, as deposits can clog fuel lines. It's recommended to fill up the tank before seasonal changes to minimize condensation.