AMSOIL was founded in 1972 with the first API-rated synthetic motor oil in the world. AMSOIL now formulates a wide variety of synthetic lubricating oils for all types of engines as well as fuel additives, filtration systems and other products that extend ...  moreAMSOIL was founded in 1972 with the first API-rated synthetic motor oil in the world. AMSOIL now formulates a wide variety of synthetic lubricating oils for all types of engines as well as fuel additives, filtration systems and other products that extend lubricant performance.  

Energy Release is a developer, manufacturer, and distributor of automotive chemical products, such as fuel additives and metal conditioners.

EnviroMax Plus is a fuel additive marketed by EnviroFuel Plus, the exclusive provider of EnviroMax Plus to the commercial industry. EnviroFuel works in conjunction with Extreme Research Inc, the network marketing branch for EnviroMax Plus.

Ethos Fuel Reformulator is a division of the 4-E Corporation. Ethos FR marketing site claims that Ethos Fuel Re-Formulator will save fuel, save oil and save on wear and tear to your engine.

Fuel Direct 365, a division of NatureRich, markets gas and diesel fuel additives. Fuel Direct claims that Xp3, a biodegradable combination of synthetic resins and organic compounds, improves combustion and increases engine power, reduces fuel consumption,...  moreFuel Direct 365, a division of NatureRich, markets gas and diesel fuel additives. Fuel Direct claims that Xp3, a biodegradable combination of synthetic resins and organic compounds, improves combustion and increases engine power, reduces fuel consumption, corrosion, and toxic emissions, and increases engine life.  

Greenfoot Global, based in Henderson, Nevada, markets EnviroTabs®, a product that it claims can help reduce harmful emissions and improve fuel efficiency.

Syntek markets a fuel additive called Xtreme Fuel Treatment that is designed to improve gas mileage, prolong engine life, and reduce engine emissions.