We use two steps: 1. Insert a medical-grade endoscope through the spark plug hole to visually inspect cylinder wall scratches and carbon buildup on the piston top; 2. Extract an engine oil sample to check for large metal debris or emulsification (caused by coolant leakage).

It completely falls under force majeure. After the delivery is completed (crossing the ship's rail) under FOB or CIF terms, the seller (us) bears no liability for refunds or compensation due to political risks or legal changes in the destination country that hinder customs clearance or lead to confiscation.

Yes, but it will be downgraded. For vehicles that are out of warranty and have no claims records, we will require a more in-depth physical inspection and clearly label the details page as "Data Unavailable" to ensure transparency about the risks. These vehicles typically have a higher price discount.