Rotary Ethanol Shield fuel system treatment 24 oz — protects against ethanol, cleans deposits

Rotary Ethanol Shield 24 Oz. is a concentrated fuel-treatment formula that guards the entire fuel system against the damaging effects of ethanol-blended gasoline while removing varnish and carbon deposits.

Modern gasoline often contains ethanol, which can attract water, promote corrosion, and leave deposits that reduce performance. Rotary Ethanol Shield pairs a protective chemistry with B3C's Combustion Cool Technology to both neutralize ethanol-related problems and dissolve buildup from the tank through the tailpipe. One 24 oz. bottle treats up to 120 gallons of fuel, offering a maintenance-oriented approach rather than a temporary fix.

How does Rotary Ethanol Shield protect my fuel system?

The product counteracts ethanol's tendency to absorb moisture and to promote phase separation. It also cleans varnish and carbon deposits that accumulate in carburetors, injectors, fuel lines, and combustion chambers, restoring cleaner flow and more consistent combustion.

• Moisture control to reduce phase separation risk
• Corrosion inhibitors that protect metal components
• Detergent action to dissolve varnish and carbon residues
• Compatibility with fuel system materials and seals

When and how should I use a 24 oz. bottle?

Each 24 oz. bottle is formulated to treat up to 120 gallons of gasoline, making it suitable for scheduled maintenance or seasonal storage preparation. Add the measured dose directly to the fuel tank before filling to ensure proper mixing and distribution throughout the system.

• Treats up to 120 gallons per bottle
• Add before refueling for optimal dispersion
• Use periodically for vehicles in daily use or before long-term storage
• Safe for both carbureted and fuel-injected engines when used as directed

Will it improve engine performance or fuel economy?

Rotary Ethanol Shield is designed to restore clean fuel flow and more consistent combustion by removing deposits and preventing ethanol-related contamination. While results vary by engine condition, users commonly notice steadier idling, smoother throttle response, and more reliable starts after treatment.

• Helps reduce rough idling caused by deposits
• May restore throttle responsiveness lost to clogged injectors or jets
• Can improve cold starts by addressing fuel system contamination
• Not a substitute for mechanical repairs when parts are worn

Who is this for? Rotary Ethanol Shield 24 Oz. is aimed at owners of cars, motorcycles, small engines, marine craft, and recreational vehicles that use ethanol-blended gasoline. It's useful for daily drivers, classic-car owners prepping vehicles for storage, fleet managers seeking preventative maintenance, and anyone noticing fuel-related roughness or starting issues. Because one bottle treats 120 gallons, it's also economical for workshops and small fleets. Follow the product instructions for dosing and compatibility to maximize benefits without affecting warranties.