STP Fuel Additives

Brand: STP | Part #OIL-511A5B

Category: Oil & Fluids > Fuel Additives

The STP Fuel Additives (P/N OIL-511A5B) 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-511A5B is the manufacturer reference — match it against your old part or VIN-based lookup to confirm you have the right unit. Confirmed fitment on 2006–2022 Lexus, Honda, Toyota, Dodge including RC, Pilot, RAV4, Prius, Challenger, Durango. 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: $51.99 | In stock — ships within 1-2 business days. Free shipping on orders over $75.