Description

Marine Tune-Up

When watersport engines are running rough, it’s time for STA-BIL® Marine Tune-Up. The easy-to-use additive pours directly into the fuel tank to address issues caused by ethanol-blended fuels or plain old, neglected fuel systems. One treatment is enough to restore lost engine performance in any gasoline-powered watercraft like jet skis, speed boats, and PWCs. Try it next time the engine seems to be running a bit rough, unlike you remember it.

Formulated For

Any gasoline-powered watercraft like jet skis, speed boats, and PWCs.

Top Benefits:

  • Easily cleans carbs and injectors
  • Treats 20 gallons of fuel
  • Quickly resolves rough-running engines
  • Dissolves gum and varnish build-up
  • Perfect for small boats and personal watercraft (PWCs)
  • Compatible with all gasoline marine engines
  • Great to use as a “tune-up” throughout boating season

Directions for Use:

  • Use 1oz of STA-BIL® Marine Tune-Up for every 2.5 gallons of fuel.
  • Once users measure out the correct ratio, pour STA-BIL® Marine Tune-Up directly into the gas tank of the marine vessel
  • After pouring in the additive, top off the gas tank with fresh fuel
  • Finally, start the engine and let it run for 15 minutes uninterrupted

Specifications:

  • Size: 8 oz

Shipping & Delivery

⚓ Smooth Sailing Shipping

Enjoy FREE standard shipping on most orders over $250 within the continental U.S. (excl. heavy/oversized/hazardous items).

We ship via UPS, FedEx, and USPS . Orders are processed in 1–2 business days with typical delivery in 1–5 business days .

🧭 Track The Voyage

You’ll receive tracking info by email once your order ships. If your package is marked “delivered” but not received, please wait 48 hours then reach out to our team.

🛟 Hassle-Free Returns & Exchanges

Returns accepted within 30 days of delivery. Items must be unused and in original packaging.

  • Mistaken or damaged cargo? We’ll handle return shipping.
  • Changed your course? Return shipping is on you.
  • Report defects or damage within 7 days for a free exchange.

💰 Anchor Your Refund

Refunds go back to your original payment method within 5–7 business days after inspection.

📨 Contact the Crew

Questions about your order? Drop anchor at sales@marineelec.com .