4S dealership records are directly connected to the manufacturer's database, making the data hard to tamper with and the most reliable, with original parts guaranteed; third-party repair shops usually are not connected, making their data unverifiable. Therefore, we only consider the connected records from 4S dealerships as valid historical documentation.

If General Average is triggered, all cargo owners must share the rescue costs. If you purchased marine insurance with a "General Average included" clause under CIF terms through us, the insurance company will cover this high shared cost for you; if you are an uninsured FOB buyer, you will need to pay it yourself.

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).