HS 3811 — Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils
HS heading 3811 (Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils) spans 4 products in U.S. import records, with 21,906 bill-of-lading shipments. The most imported are Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils, other, Containing petroleum oils or oils obtained from bituminous minerals, and Additives for lubricating oils, other.
Part of Chapter 38: Miscellaneous chemical products
Sourced from U.S. Customs bill of lading data · Updated monthly · Data through August 2026Cite as: ImportDoor, U.S. Customs bill of lading data (data through August 2026), https://www.importdoor.com/products/heading/3811
Products under this heading
Frequently asked questions about HS 3811
What is HS code 3811?
HS 3811 covers antiknock preparations, oxidation inhibitors, gum inhibitors. It is a 4-digit heading in chapter 38 (Miscellaneous chemical products) of the Harmonized System, with 4 six-digit subheadings that appear in U.S. import records.
How many U.S. import shipments fall under HS 3811?
ImportDoor has 21,906 U.S. Customs bill-of-lading shipment records under HS heading 3811, updated monthly.
What is the most imported product under HS 3811?
Antiknock preparations, oxidation inhibitors, gum inhibitors (HS 381190) leads with 10,446 shipments, followed by Containing petroleum oils or oils obtained from bituminous minerals (HS 381121) and Additives for lubricating oils (HS 381129).