STP Oil Treatment Additive from Canada
Friction-reducing formula with polymers that improves oil flow and reduces engine wear. HTS 3811.29.00.00 classification for other additives enhancing lubricating oil performance in passenger vehicles. Provides triple-action protection against friction, heat, and wear.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Document exact treat rate (e.g
• ounces per quart) to prove additive concentration
• EPA registration may be required if making fuel economy claims
• Avoid bulk packaging confusion with finished oils under 2710