Gas-Shok Promises to Cleans Fuel Lines & Boost Horsepower

Alas, the days of summer are quickly ebbing and the season of autumn is upon us. For many watching the mercury sink by each passing day, it’s time to consider winterizing your personal watercraft. And with that, so too goes storing extra fuel. Despite the naysayers online, ethanol-blended fuels can survive the changes in weather; modern blends and tighter bonds keep the fuels from delaminating as quickly as previous blends. Yet, the biggest concern is its ability to collect moisture – and that’s where Gas-Shok Plus comes in!

Designed to keep fuel from going bad, Gas-Shok Plus keeps ethanol-rich fuels from absorbing so much moisture, which can oxidize sensitive components in the fuel system. Equally, Gas-Shok Plus isn’t as harsh as other stabilizers, meaning it won’t harm rubber hoses and grommets in the fuel tank, pickup or system as well. It’s a win-win for everyone. Check out the official press release:

As gasoline ages, it becomes stale. This can reduce engine horsepower, diminish mileage and cause difficulty starting, especially if moisture is in the tank. Adding octane-enhancing GAS-SHOK™ Plus eliminates these problems and keeps fuel refinery fresh for 12–18 months. The premium-grade additive from USA Fuel Service is ideal for RV and two- and four-stroke marine engines running pure gas or ethanol blends.

Ethanol in gasoline tends to absorb moisture. Professional-strength GAS-SHOK Plus disperses residual water that then gets burned off as steam. It’s rated for engines running E-10 to E-85 blends.

Petroleum-based GAS-SHOK Plus doesn’t contain alcohol or acids, so it won’t damage hoses, gaskets or other components. Used regularly, it keeps the fuel system clean by preventing gum and varnish from accumulating on rings, valves and related parts. Plus, the advanced formula adds lubrication to extend the life of the fuel pump and injectors. These attributes translate into better mileage and an engine that runs as smooth as silk. A video is at

GAS-SHOK Plus is simply added to the fuel tank, one ounce per 10 gallons of gasoline. Ideal for winterizing, it has no impact on engine warranties. An 8 oz. container of GAS-SHOK Plus treats 80 gal. and costs $18.85; 32 oz. remedies 320 gal. and runs $47.20; and one gal. doses 1,280 gal of gasoline and is $139.60.

USA Fuel Service, W 15223 Kelly Rd., Taylor, WI 54659. 866-575-3835.

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Kevin Shaw

Editor-in-Chief – Kevin Shaw is a decade-long powersports and automotive journalist whose love for things that go too fast has led him to launching The Watercraft Journal. Almost always found with stained hands and dirt under his fingernails, Kevin has an eye for the technical while keeping a eye out for beautiful photography and a great story.

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