STP Oil Treatment Additive from Germany
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.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• 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