Tetraethyl Lead Gasoline Antiknock Additive
A lead-based antiknock preparation containing tetraethyl lead for enhancing octane ratings in aviation gasoline. It falls under HTS 3811.11.1000 as it is specifically based on tetraethyl lead, used to prevent engine knocking in high-performance piston aircraft engines. Primarily used in general aviation where unleaded alternatives are not yet universal.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If based solely on tetramethyl lead without tetraethyl lead
Tetramethyl lead compounds fall under the separate subheading for other lead-based antiknocks, excluding tetraethyl lead mixtures.
If imported as a gasoline blend rather than a pure additive
Finished gasoline containing the antiknock preparation is classified as motor fuel under Chapter 27, not as a separate additive.
If for non-fuel chemical preparations with trace tetraethyl lead
If not specifically prepared for mineral oils or fuel use, it shifts to other chemical preparations outside heading 3811.
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Import Tips & Compliance
• Obtain EPA waivers for lead additives as they are heavily regulated; ensure proper hazardous material shipping documentation; verify aviation fuel compatibility certifications to avoid misclassification
Related Products under HTS 3811.11.10.00
TEL-TML Mixture Aviation Fuel Booster
A prepared additive blending tetraethyl lead (TEL) and tetramethyl lead (TML) to boost octane in 100LL avgas for piston aircraft. Classified under HTS 3811.11.1000 due to its basis on the specified lead compounds for anti-knock performance in mineral oil-based fuels. Essential for legacy aircraft engines requiring high-octane protection.
Classic Car TEL Octane Improver
Tetraethyl lead-based additive designed for vintage and classic car engines using leaded gasoline formulations. It qualifies for HTS 3811.11.1000 as an antiknock preparation based on tetraethyl lead for mineral oils like gasoline. Used by restorers to mimic original fuel performance and prevent valve damage.
TEL Lead Additive for Racing Fuels
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Aviation 100LL TEL Antiknock Compound
Specialty compound of tetraethyl lead for 100LL low-lead aviation gasoline production. Classified in HTS 3811.11.1000 as it matches the exact description for TEL-based antiknock preparations for mineral oils. Critical for maintaining consistent blue-dyed avgas specifications.
Vintage Engine TEL Fuel Treatment
Tetraethyl lead treatment for restoring performance in pre-1970s automobile engines. It is based on TEL for antiknock in gasoline, fitting HTS 3811.11.1000 precisely. Helps prevent pinging in high-compression classic motors.