STP Fuel Additives

Brand: STP | Part #OIL-EE3172

Category: Oil & Fluids > Fuel Additives

The STP Fuel Additives (P/N OIL-EE3172) is a direct-fit Fuel Additives for the vehicles listed in the fitment section. Compatible with most factory-fill chemistries — top-off and full drain-and-refill use cases both supported. Sourced from STP, a recognized supplier in the aftermarket auto parts channel. Part number OIL-EE3172 is the manufacturer reference — match it against your old part or VIN-based lookup to confirm you have the right unit. Confirmed fitment on 2014–2020 Honda, Cadillac, Audi, Kia including HR-V, Civic Si, CT5, XT5, Lyriq, Q8. Use the year/make/model selector above to verify your exact configuration before checkout. Same- or next-business-day handling on in-stock orders. Free US shipping over $75 — no surprise oversized fees on this item. Backed by a 90-day return window — if the part doesn't fit or the wrong unit was shipped, send it back for a full refund.

Price: $59.99 | In stock — ships within 1-2 business days. Free shipping on orders over $75.

Vehicle Compatibility

Compatible Makes: Honda, Cadillac, Audi, Kia

Compatible Models: HR-V, Civic Si, CT5, XT5, Lyriq, Q8, Q7, Sorento, K5

Year Range: 2014–2020