HS Code for Octane improver
Octane improvers, categorized as anti-knock preparations, are classified under HS code 3811.19. Heading 3811 covers a variety of prepared additives for mineral oils, including anti-knock agents, oxidation inhibitors, and viscosity improvers. The classification logic for octane improvers depends on whether the preparation is based on lead compounds. Subheading 3811.11 is specifically for lead-based anti-knock preparations (such as Tetraethyl lead), while 3811.19 is the residual category for all other anti-knock preparations, including modern manganese-based or organic additives. These substances are added to motor spirit (gasoline) to increase its resistance to premature detonation or "knocking." Because these are prepared chemical mixtures designed for a specific functional role in fuel enhancement, they are classified in Chapter 38 rather than as pure organic chemicals in Chapter 29.
Products Included
- MMT (Methylcyclopentadienyl manganese tricarbonyl) solutions
- Ferrocene-based anti-knock additives
- Aromatic amine-based octane boosters
- Non-leaded fuel additive concentrates
- Prepared octane-enhancing mixtures for refinery blending
Common Misclassification
Octane improvers are frequently misclassified under HS code 2905.11 (Methanol) or 2909.19 (MTBE) when these chemicals are shipped in their pure form. While MTBE and ethanol increase octane, they are classified as separate chemically defined compounds in Chapter 29 unless they are mixed as a "preparation" for fuel use. Another common error is using 3811.90, which is for other additives like detergents or stabilizers. If the primary purpose of the additive is to prevent knocking or increase the octane rating, 3811.19 is the legally required code. Lead-based additives must never be classified here and must use 3811.11.
FAQ
What is the HS code for octane improver?
The HS code for non-lead-based octane improvers is 3811.19.
Are pure alcohols like ethanol classified as octane improvers?
No, pure alcohols are classified in Chapter 29. Only prepared mixtures specifically formulated as anti-knock agents fall under 3811.19.
Industry
Frequently Asked Questions
What is the HS code for Octane improver?
The HS code for Octane improver is 381119 (Anti-knock preparations; other than those based on lead compounds).
How do I classify Octane improver for customs?
Octane improver is classified under HS code 381119 — Anti-knock preparations; other than those based on lead compounds. This is a 6-digit subheading level code.
Is the HS code for Octane improver the same in all countries?
The base HS code 381119 for Octane improver is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.