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).

Under CIF (Cost, Insurance, and Freight) terms, we will insure your vehicle with a reputable international insurance company for "All Risks" before shipment. If total loss or partial damage occurs during sea transport, the risk transfers to you once the goods cross the ship's rail. However, sellwellauto will not stand by; we will assist you in preparing complete claims documentation (such as the bill of lading, invoice, and damage photos) to initiate a cross-border claim process with the insurance company, minimizing your financial loss.

All our measuring instruments (especially calipers, paint thickness gauges, and refrigerant pressure gauges) are calibrated quarterly according to ISO quality management system requirements to ensure the data we provide you is objective, accurate, and reliable.