It is often said in the market that the amount of urea used is 3%-5% of fuel consumption. It should be noted here that 3%-5% means that 100L of fuel is consumed, and 3-5L of urea is required for vehicles. A simple understanding is that only urea for vehicles is consumed, and no fuel is consumed, so it will not increase fuel consumption.

Studies have shown that there is no direct relationship between the use of urea for vehicles and fuel consumption. Urea for vehicles is used in the SCR system of the National IV vehicles. The SCR system communicates with the engine through the ECU of the OBD system. If the SCR system does not work normally, the OBD system will reduce the power output of the engine and increase fuel consumption. However, if the SCR system works normally, the National IV engine using high-pressure common rail technology will burn more fully, and the car output power will be more stable, which can save about 6% of fuel consumption compared with the National III engine. Fuel consumption, but high-quality urea for vehicles can ensure the normal operation of the SCR system and help reduce fuel consumption.