

STA-BIL In-Season Protection – 10oz
$10.99 $10.11
In-Season Protection – 10oz
STA-BIL In-Season Protection Fuel System Treatment, America's #1 Ethanol Treatment, is engineered to combat the negative effects of ethanol-blended fuels. This industry-leading formula prevents corrosion, cleans the fuel system, and prevents the buildup of unwanted gum and varnish, ensuring your equipment will be ready to go whenever you need it. 1oz treats 5 gallons of gas. If using small engine equipment, pour directly into your gas can. If adding to a vehicle, it is best practice to add STA-BIL In-Season Protection Fuel System Treatment before adding fresh fuel at the pump. This product is designed to be added to the fuel as soon as you get it, so that you know the fuel is fresh. This formula will also keep gas fresh for up to a year. Use throughout the season to make sure your engine runs top-notch year-round!
Features:
- America’s #1 Ethanol Treatment
- Prevents Corrosion Caused By Ethanol Blended Fuels
- Increases Engine Power and Fuel Efficiency
- Effective In All Gasoline, Including Ethanol and Non-Ethanol
- Engineered For Year-Round Usage – Use At Every Fill-Up
- Keeps Fuel Fresh For Up To 12 Months


⚓ 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 .