High-Sulfur Biodiesel Blend No. 4 Heating Oil
A No. 4-grade heating oil preparation containing biodiesel and >70% petroleum distillates, with sulfur >500 ppm, API ≥25°, and viscosity 45-125 seconds SUS. Classified in HTS 2710.20.1025 for its fuel oil characteristics and high sulfur in non-retail bulk form.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If viscosity exceeding 125 SUS
Heavier viscosity pushes classification to No. 5 or 6-type residual fuels.
If electrical energy component included
Hybrid fuel-energy products may fall under electrical energy heading per Chapter notes.
If lubricity-enhanced with >30% non-petroleum lubes
Significant lubricant additives shift to Chapter 34 lubricating preparations.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide fatty acid methyl ester (FAME) content analysis for biodiesel verification
• Use temperature-compensated density measurements for accurate API gravity declaration
• Monitor for sediment/water content to prevent pipeline rejection during transport
Related Products under HTS 2710.20.10.25
No. 4 Fuel Oil (High Sulfur)
A medium-weight distillate fuel oil derived from petroleum refining, testing 25 degrees A.P.I. or more with Saybolt Universal viscosity between 45-125 seconds at 37.8°C, containing over 500 ppm sulfur. Classified under HTS 2710.20.1025 due to its fuel oil specifications and high sulfur content in biodiesel-blended preparations with 70%+ petroleum oils. Used primarily for industrial heating and marine applications.
Blended No. 4 Marine Bunker Fuel (High Sulfur)
A biodiesel-blended No. 4-type residual fuel oil for marine bunkering, with API gravity ≥25°, viscosity 45-125 SUS at 37.8°C, and sulfur >500 ppm. Fits HTS 2710.20.1025 as a preparation with ≥70% petroleum oils containing biodiesel, designed for ship auxiliary engines outside low-sulfur emission zones.
Industrial Boiler No. 4 Fuel Oil (Sulfur >500 ppm)
Heavy distillate fuel oil blended with biodiesel for stationary industrial boilers, exhibiting 25°+ API gravity, 45-125 SUS viscosity, and exceeding 500 ppm sulfur. HTS 2710.20.1025 applies to this preparation where petroleum oils form ≥70% by weight as the basic component.
No. 4 Generator Fuel Oil (High Sulfur Content)
Distillate fuel oil for diesel generators, biodiesel-blended with ≥70% petroleum oils, >500 ppm sulfur, 25+° API, and 45-125 SUS viscosity at 37.8°C. Meets HTS 2710.20.1025 criteria for high-sulfur No. 4-type fuel oils containing biodiesel.