Gasoline Fuel Treatment

A Highly Concentrated, Ashless, Non-Phosphorous,
Fuel Supplement for Gasoline that Improves Many Areas of Performance WhileReducing Emissions

Gasoline as sold in the United States and other developed countries is a highly consistent product designed to be used shortly after leaving the refinery. However, when left in fuel tanks, and fuel systems, problems occur with even the best of this fuel. This often becomes a problem in both marine and agricultural applications.
Leaded gasoline is often no longer available in many localities because of environmental concerns and the use of catalytic converters. Many older engines require leaded gasoline to reduce wear damage to vital engine parts.
Oxyenated gasoline is often required in urban areas. This also creates combustion problems that can diminish engine performance.

GSL-4 contains compounds and ingredients that improve the performance aspects of the gasoline as it is available today.

GSL-4 contains a complete, yet gentle detergent that cleans and dissolves milage robbing gum, varnish and carbon in the fuel lines, carburetors, injectors and combustion chamber. It inhibits buildup of new deposits and keeps moving parts in carburetors working freely.

GSL-4 includes a surfactant that breaks down the surface tension of water. This chemical emulsifier breaks water into microscopic particles and disperses them into the fuel to be burned during the combustion cycle. It removes water from fuel tanks, gas lines and bulk storage tanks. Gasoline/Petro freeze-up is eliminated when the system is rid of water. Rust and corrosion of fuel tanks, and fuel system components is greatly reduced.

GSL-4 contains a compound designed to reduce wear damage to vital engine parts caused by unleaded gasoline/petro. The lead replacing lubricant accomplishes the same function as lead in regular gasoline, preventing metal to metal contact between valves and valve seates. It helps piston rings and valve stems to work freely, resulting in smoother operation, reduced wear and extended engine life. The compound assures that parts in contact with the fuel, particularly the carburetor, will work freely. GSL-4 is recommended for increasing the life span of older agricultrual, commercial and marine engines that required leaded fuel.

GSL-4 includes a combustion modifier that provides a smoother power stroke of the piston. It contributes to more complete combustion so the engine will harness the power of the fuel more efficiently. The result is better gasoline mileage and more power. Users report fuel savings from 8 to 10 percent. Results from your vehicle will depend on the quality of the fuel burned and the condition of the engine.


Add 1 ounce GSL-4 to every 16 gallons of gasoline/petro. Double dose the first few treatments to remove exisiting water and deposits. Add to bulk storage tanks before refilling, one gallon of GSL-4 to 2,000 gallons of gasoline. Available in case quantities of four gallon containers as well as 30 and 55 gallon drums.


GSL-4 may be used in all grades of gasoline/petro. It meets Federal Regulation 46 FR 38582 per The Environmental Protection Agency. GSL-4 contains no methyl, ethyl or isopropyl alcohol

Typical Properties

Specific Gravity at 60ºF. 0.797
Flashpoint 109ºF.
Viscosity (SUS@ 100ºF) 30.0 SEC
Pour Point Below -60ºF
Color Red
Initial Boiling Point 318ºF.
Final Boiling Point 418ºF.
Ash Content Less than 0.005%


Safe to handle. Store the product in a cool, dry place, away from heat, sparks or flames. Do not reuse containers.

Advanced Technology International Corp.
1820 Wallace Ave. Suite 108,
St. Charles IL 60174, USA.
Tel: (630)513-0009 ; Fax: (630) 513-0080