Brazil NCM · 4-digit heading
NCM 38.11 – Anti-knock preparations and mineral oil additives
About NCM heading 38.11
Anti-knock preparations, oxidation and gum inhibitors, viscosity improvers, anti-corrosive preparations and the like, for mineral oils (including gasoline) or other liquids used for the same purposes
Heading 38.11 of Brazil's NCM has 13 eight-digit codes. Official Portuguese description: Preparações antidetonantes, inibidores de oxidação, aditivos peptizantes, beneficiadores de viscosidade, aditivos anticorrosivos e outros aditivos preparados, para óleos minerais (incluindo a gasolina) ou para outros líquidos utilizados para os mesmos fins que os óleos minerais.
The first four digits, 3811, identify this heading within chapter 38. Its six-digit subheadings follow the international HS system; the final two digits distinguish Mercosur's NCM classifications. Select a code below to read its English translation, official Portuguese text and full classification path.
For product coverage and classification context, read the HS heading 38.11 guide.
NCM codes in heading 38.11 13
- 3811.1 Anti-knock preparations: Preparações antidetonantes:
- 3811.11.00 Lead-based anti-knock preparationsÀ base de compostos de chumbo
- 3811.19.00 Other anti-knock preparationsOutras
- 3811.2 Additives for lubricating oils: Aditivos para óleos lubrificantes:
- 3811.21 Lubricating oil additives; containing petroleum oils or oils obtained from bituminous mineralsQue contenham óleos de petróleo ou de minerais betuminosos HS code
- 3811.21.10 Viscosity index improvers for lubricating oilsMelhoradores do índice de viscosidade
- 3811.21.20 Zinc dithiophosphate anti-wear oil additivesAntidesgastes, anticorrosivos ou antioxidantes, que contenham dialquilditiofosfato de zinco ou diarilditiofosfato de zinco
- 3811.21.30 Ashless dispersants with petroleum oilsDispersantes sem cinzas
- 3811.21.40 Metallic detergents with petroleum oilsDetergentes metálicos
- 3811.21.50 Lube oil additive blends with petroleum oilsOutras preparações que contenham, pelo menos, um de quaisquer dos produtos compreendidos nos itens 3811.21.10, 3811.21.20, 3811.21.30 e 3811.21.40
- 3811.21.90 Other lube oil additives with petroleum oilsOutros
- 3811.29 Lubricating oil additives; not containing petroleum oils or oils obtained from bituminous mineralsOutros HS code
- 3811.29.10 Ashless dispersants without petroleum oilsDispersantes sem cinzas
- 3811.29.20 Metallic detergents without petroleum oilsDetergentes metálicos
- 3811.29.90 Other lube oil additives without petroleum oilsOutros
- 3811.90 Oxidation and gum inhibitors, viscosity improvers, anti-corrosive preparations, other prepared additives for mineral oils or liquids used as mineral oils (including gasoline), n.e.c. in heading no. 3811Outros HS code
- 3811.90.10 Ashless dispersants for fuel oilsDispersantes sem cinzas, para óleos de petróleo combustíveis
- 3811.90.90 Other mineral oil additives and inhibitorsOutros
Source: Siscomex Classif NCM table, updated Oct 2026 (Resolução Gecex nº 926/2026). The Portuguese text is the official one; the English is our translation.