US Import Duty
HTS 3811.11.50.00 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 › Based on lead compounds › Other
HTS code 3811.11.50.00 covers "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 › Based on lead compounds › Other" under the US Harmonized Tariff Schedule. This is the official duty rate charged by US Customs when this product is imported into the United States, sourced directly from the U.S. International Trade Commission and refreshed daily.
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U.S. exports of Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers
The United States exported $3.0 billion of goods under HS heading 3811 in 2025, to 150 countries and territories. Top destination markets:
| Country | Exports 2025 | YTD |
|---|---|---|
| Canada | $432 million | ▲ +7.1% |
| Mexico | $326 million | ▼ −5.9% |
| France | $323 million | ▼ −13% |
| Singapore | $267 million | ▼ −21% |
| China | $212 million | ▼ −20% |
January–July 2026: $1.9 billion (▲ +3.8%)
All markets and states for this product →
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. Source: U.S. Census Bureau, International Trade data (census.gov/foreign-trade), FAS value in current U.S. dollars, latest month July 2026. Change vs the same months of the previous year: Fromerica calculation.
Official US tariff data (USITC), refreshed daily.Last checked against the official schedule: . See recent US tariff changes →