Mexican Tariff (TIGIE) · tariff fraction · HS 3811.90
3811.90.01.00: Other fuel and oil additives: Aditivos para combustóleo a base de óxido de magnesio; aditivos para combustóleo a base de agentes emulsionantes.
Other fuel and oil additives
✓ Can be used in a customs declaration Data: Mexican Tariff (TIGIE), in force from 14 October 2026 · checked on 24 October 2026
This line has no official text in this language; it is shown in the language of its tariff.
- 3811 Preparaciones antidetonantes, inhibidores de oxidación, aditivos peptizantes, mejoradores de viscosidad, anticorrosivos y demás aditivos preparados para aceites minerales (incluida la gasolina) u otros líquidos utilizados para los mismos fines que los aceites minerales.
- 3811.90 Los demás.
- 3811.90.01 Aditivos para combustóleo a base de óxido de magnesio; aditivos para combustóleo a base de agentes emulsionantes.
- 3811.90.01.00 Aditivos para combustóleo a base de óxido de magnesio; aditivos para combustóleo a base de agentes emulsionantes.
What you pay
Importing into Mexico
Customs duty only: import VAT, other taxes and trade defence duties of this country are not covered here, and the duty calculator works only with the EU, Türkiye, US and UK tariffs.
Same subheading in other tariffs
3811.90 Anti-knock preparations, oxidation inhibitors: other
UK 4% Third-country duty 4 tariff lines 
EU 5.8% Third-country duty 1 tariff line 
Türkiye 5.8% Third-country duty 4 tariff lines 
USA 6.5% General (MFN) 1 tariff line 
Canada Free General (MFN) 2 tariff lines 
Brazil Free – 12.6% General (MFN) 2 tariff lines · average 6.3% 
Argentina Free – 12.6% General (MFN) 8 tariff lines · average 1.6% 
Peru Free General (MFN) 1 tariff line 
New Zealand Free General (MFN) 1 tariff line 
Japan Free General (MFN) 2 tariff lines 
Taiwan 2.5% General (MFN) 1 tariff line 
GCC 5% General (MFN) 2 tariff lines 
Switzerland Free General (MFN) 2 tariff lines 
Norway Free General (MFN) 1 tariff line 
North Macedonia 6% General (MFN) 1 tariff line 
Nigeria 10% General (MFN) 1 tariff line Mexico lines: 3811.90
Binding rulings for similar goods
Decisions of U.S. Customs and Border Protection (CROSS) and HMRC (Advance Tariff Rulings) on goods classified here. A ruling binds only its holder, but shows how the authorities classify similar goods. The descriptions are the authorities’ own, in English.
- H303930 U.S. CBP
Tariff classification of Howes Diesel Treat; additive for mineral oil
Legal notes
Tariff fraction 3811.90.01.00 is a line of the Mexican Tariff (TIGIE) under HS subheading 3811.90 (anti-knock preparations, oxidation inhibitors: other).
The import duty (IGI) is free, and quantities are declared in Kg.
For the same subheading, the UK duty is 4%, the EU duty is 5.8%, the Türkiye duty is 5.8%, the US duty is 6.5%, the Canada duty is free, the Brazil duty is 0%–12.6%, the Argentina duty is 0%–12.6%, the Peru duty is free, the New Zealand duty is free, the Japan duty is free, the Taiwan duty is 2.5%, the GCC duty is 5%, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is 6% and the Nigeria duty is 10%.
Mexico imported goods of subheading 3811.90 worth US$125m in 2024; the largest supplier was the United States.
Questions and answers
What is the Mexico import duty for tariff fraction 3811.90.01.00?
The import duty (IGI) in the Mexican Tariff (TIGIE) is free; the supplementary unit is Kg. This page shows the rate as published by the national source and, where the source publishes them, preferential rates: choose the country of origin to see them. Trade defence duties and VAT are not covered.
Where does Mexico import these goods from?
For subheading 3811.90 as a whole, the largest supplier in 2024 was the United States (US$120m), followed by Germany.
Typical products
Everyday names, not part of the legal text.