No. 6 Fuel Oil from Mexico
No. 6 fuel oil is a heavy residual fuel oil derived from petroleum refining, characterized by a Saybolt Universal viscosity exceeding 125 seconds at 37.8°C and an API gravity of 25 degrees or more. It falls under HTS 2710.19.11.50 as a distillate and residual fuel oil used primarily for industrial heating and power generation. This classification applies to its high viscosity and petroleum oil content over 70%.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Verify Saybolt viscosity certification from supplier to confirm >125 seconds at 37.8°C for proper classification
• Obtain flash point documentation as heavy fuel oils often require IMO compliance for marine transport
• Avoid misclassification as lighter distillates by ensuring API gravity testing ≥25 degrees