How to Solve the High Fuel Consumption Issue of HOWO T7H?
2 Answers
For high fuel consumption in HOWO T7H, you can check all valves for carbon deposits and clean them; remove all fuel injectors for recalibration; and calibrate the diesel pump. These steps can basically resolve the high fuel consumption issue. Below is an introduction to the HOWO T7H: 1. Introduction: The SINOTRUK HOWO T7H series tractor, incorporating Volvo FH cab technology, complies with the strictest European safety collision regulations. The engine adopts German MAN technology MC13 engine, with a displacement of 12.7 liters, covering a power range of 480-540 horsepower. It offers options for 12-speed, 16-speed manual and automatic transmissions. The front axle is 7.5 tons, and the rear axle can be selected from MCY11/13Q series 11-ton and 13-ton lightweight axles. 2. Configuration: According to the latest national standards, it adopts an integrated anti-splash device. The urea tank is designed on the right side of the cab with an aluminum bracket below. It meets the National VI emission standards, and the rear emission system uses imported Tenneco or Bosch brands, with plans to switch to domestically produced products in the future.
I've been driving trucks for over a decade and encountered many fuel consumption issues. For the HOWO T7H, if fuel consumption suddenly spikes, the most common cause is driving habits. Frequent sudden acceleration and braking wastes fuel; unstable speed at high speeds, alternating between fast and slow, also increases resistance. It's recommended to start smoothly and maintain a constant economical speed of 60-80km/h. Next is tire issues—check if the tire pressure is insufficient. I use a tire pressure gauge before every trip; low pressure increases friction, naturally raising fuel consumption. Regularly change engine oil and air filters; dirty oil clogs the engine, reducing combustion efficiency. Use high-quality diesel fuel; don’t skimp and use low-quality fuel with more impurities, which makes the engine work harder. Lastly, reduce idling time, such as turning off the engine when parked and minimizing the use of high-power electrical devices. Combining these, my experience is to start with driving adjustments, which can reduce fuel consumption by about 10%.
