STP Oil Treatment Additive
A multi-functional engine oil additive containing viscosity improvers and anti-wear agents designed to enhance lubrication in mineral motor oils. It falls under HTS 3811.90.00.00 as a prepared additive for mineral oils used in gasoline engines, improving film strength and reducing friction. Primarily used by consumers to extend engine life in passenger vehicles.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If predominantly petroleum oil base exceeding 70% content
High oil content shifts classification to petroleum oils rather than prepared additives
If primarily lubricating oil additives like anti-wear without viscosity modification
Focus on lubricant preparations moves it to Chapter 34 for metal working fluids
If for industrial hydraulic fluid applications rather than automotive
Specialized chemical preparations for non-mineral oil hydraulic systems
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Import Tips & Compliance
• Verify EPA registration if claims include emissions reduction; ensure SDS includes exact chemical composition for CBP review; avoid misclassification as finished lubricant by confirming it's an additive concentrate
Related Products under HTS 3811.90.00.00
Lucas Oil Stabilizer
Heavy-duty oil stabilizer with viscosity improvers for high-mileage engines, compatible with mineral and synthetic motor oils. Classified under HTS 3811.90.00.00 as an oxidation inhibitor and viscosity improver additive for mineral oils used in internal combustion engines. Helps prevent oil breakdown under extreme temperatures.
Sea Foam Motor Treatment
Petroleum-based cleaner and stabilizer that dissolves gum and varnish in mineral fuels and oils, acting as a gum inhibitor. HTS 3811.90.00.00 covers this prepared additive for gasoline and crankcase oils, safe for use in fuel systems. Popular for engine flush and fuel system maintenance.
BG 109 Fuel System Cleaner
Concentrated gasoline additive with detergents and gum inhibitors for mineral fuels, preventing injector deposits. Falls under HTS 3811.90.00.00 as a prepared additive for gasoline (mineral oil). Professional-grade product for automotive service centers.
Chevron Techron Concentrate Plus
Polyether amine-based gasoline additive that cleans fuel injectors and combustion chambers in mineral fuels. Classified HTS 3811.90.00.00 as other prepared additives including gum inhibitors for gasoline. Maintains fuel system efficiency in direct injection engines.
Valvoline Syn Power Fuel System Cleaner
Synthetic blend fuel additive with oxidation inhibitors for preventing fuel degradation in stored mineral gasoline. HTS 3811.90.00.00 applies to these prepared oxidation inhibitors for mineral oils/fuels. Ideal for small engines and seasonal storage.
Royal Purple Max-Boost
Octane booster and detergent package for racing fuels, containing metal deactivators and gum inhibitors. Covered by HTS 3811.90.00.00 as other additives for high-performance mineral fuels. Used in performance automotive and powersports applications.