What are the drawbacks of China VI diesel vehicles?

[AubreyAnn]

Here are the drawbacks of China VI diesel vehicles: 1. Impact on normal vehicle operation: With a sulfur content of 10PPM, the DPF passive regeneration time is 100 hours per cycle. As sulfur content increases, the DPF passive regeneration time decreases, requiring frequent stops for passive regeneration, which will inevitably reduce vehicle operational efficiency. 2. Severely shortens DPF lifespan: This leads to premature DPF failure, and the replacement cost is relatively high, potentially reaching tens of thousands of yuan. Due to the strict fuel quality requirements in the China VI phase, if post-processing issues arise due to substandard fuel quality, manufacturers may refuse warranty claims even during the warranty period. Therefore, many OEMs require proof of refueling at certified gas stations for the past year when performing maintenance.