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Finally a cost effective approach to reducing emissions. Make your Gasoline / Diesel / Bio-Diesel vehicles & equipment more environmentally friendly with Enviro Kleenze™

About Us

Enviro Kleenze™ is a concentrated fuel additive comprised of a fuel-soluble carrier containing several catalysts that, combined, act to improve combustion efficiency and reduce emissions. Enviro Kleenze can be blended with fuel at any point from fuel manufacturing to the end user filling their vehicle’s tank.

Enviro Kleenze is suitable for use in gasoline, gasoline/ethanol blends, diesel, biodiesel, diesel/biodiesel blends, and residual fuels such as bunker fuel.  It can also be added to fuels such as wood chips to improve BTU values and reduce emissions.

What does Enviro Kleenze do?

Enviro Kleenze catalytically reduces harmful emissions, improves engine torque, and improves fuel consumption.

Certain components in Enviro Kleenze reduce activation energy during the combustion process. Activation energy is the amount of energy required to initiate a chemical reaction, which, in this case, is the reaction of oxygen free radicals with hydrocarbon fuel. The reduction in activation energy during combustion is achieved via addition of catalysts in the fuel that are carried by the fuel into the engine during operation. The catalysts do not cause combustion to occur, they simply facilitate the combustion reaction once combustion is initiated in the engine cylinder.

During fuel combustion in a closed system such as an engine’s cylinder, activation energy is not recoverable as work output, so a reduction in activation energy during fuel combustion translates to more system energy available to do work.  This is commonly seen as an improvement in torque with a concomitant improvement in Specific Fuel Consumption (SFC), which is a measure of the amount of fuel needed to perform a specific amount of work, such as moving X mass Y distance.  In the case of generators, SFC is usually measured as the amount of fuel needed to generate a kilowatt-hour of energy.

Because SFC is improved, less carbon as Carbon Monoxide (CO) and Carbon Dioxide (CO2) is emitted when measured against work performed.

The catalysts provided during the combustion process also contribute to the reduction of carbon emissions measured as soot or Particulate Mass (PM) in engine exhaust due to improved combustion efficiency.

Enviro Kleenze also has catalysts in it that work post-combustion to reduce emissions. The catalytic process by which Enviro Kleenze reduces NOX and SOX is similar to Selective Catalytic Reduction (SCR) units. That said, Enviro Kleenze does not have the same shortcomings that SCR does, where SCR only becomes effective once the system reaches a sufficient temperature for catalysis to occur, which is typically between about 250°C and 430°C. Enviro Kleenze also is not subject to catalyst “poisoning” (a reduction in catalytic effectiveness due to reaction with chemicals that impede the catalytic effect). Nor does the user have to be concerned with about thermal cycling breaking down the physical structure of their catalytic converter over time. This is because the active catalysts are being continually supplied in the fuel.

Enviro Kleenze does not change the characteristics of the fuel it is blended into, so a fuel that meets national/international fuel standards prior to blending with Enviro Kleenze still meets those standards.

Product Testing

Passenger & Commercial Transport Vehicles
Passenger & Commercial Transport Vehicles
Enviro Kleenze™ has been tested in a variety of diesel, biodiesel, and gasoline-powered personal, passenger, and commercial transport vehicles.

Download this datasheet
Three diesel-powered barges carrying goods in the Netherlands and a large transport ferry running between Greece and Italy were tested for the effect of Enviro Kleenze™ on emissions as well as fuel economy.

Download this datasheet
Generators of varying size that have been tested to determine the effect of Enviro Kleenze™ on them in terms of reducing the amount of fuel required to produce electricity as compared to untreated fuel.

Download this datasheet
Heavy Equipment
Heavy Equipment
In order to help alleviate some of the expense of creating and maintaining ventilation shafts, while still meeting air quality regulations, a global mining company tested Enviro Kleenze™ in equipment that was regularly monitored for emission levels.

Download this datasheet

Technical Details of Enviro Kleenze™


Enviro Kleenze was invented and developed by Clean Air Technologies, a division of Green Earth Naturally, LLC. Enviro Kleenze™ was initially released in the US market as OptiDiesel, but diesel-powered engines are not as popular in the US as they are overseas. Therefore, the decision was made to temporarily exit the US market and move our testing, production, and marketing efforts to the European Union (EU) and other countries where diesel engines are more widely used. Enviro Kleenze™ was released there under the trade name Ultimum5.
While being tested overseas, it was found that OptiDiesel worked well in other petroleum-based fuels besides diesel. Now it’s being released again in the US, but as Enviro Kleenze™ instead of OptiDiesel.

Currently, United States Environmental Protection Agency (USEPA) regulations allow Enviro Kleenze™ to be used in off-road vehicles (trains, mining equipment, farm equipment, construction equipment, etc.), stationary engines such as generators, ships and boats, and motorcycles. Clean Air Technologies is moving forward with registering Enviro Kleenze™ with the USEPA for on-road use.

Mr Dickin is that confident of the product that he uses it in his own vehicle. He owns a Freelander ’55 plate with a 1951cc Euro 6 engine. On a 350 mile round trip his vehicle went from 32mpg to 39mpg which reduced his fuel consumption by 17.9%. Also he had his garage test the vehicle & the opacity of his fumes was 0.12 before using the Enviro Kleenze™ additive & then a test after using the Enviro Kleenze™ additiveit was then showing an opacity result of 0.04, this is a reduction of 66%

Abdul Ghafoor who drives a Honda Civic (2012 model with a 1.8 litre petrol engine) recently did a trial run of the Enviro Kleenze™ additive where he did 2 trips from Halifax to Sunderland which was an approx. 220 mile round trip. One whole trip was just petrol from the pump and the second trip was a tank treated with the Enviro Kleenze™ additive.

On the first trip he had an average of 39mpg showing on his car. Then on the second trip that had been treated with the Enviro Kleenze™ additive he then averaged 46mpg. This is an improvement in efficiency of approx. 18%.

In his own words Abdul Ghafoor commented “I was impressed by how much more efficient the car is from just 1 treatment with the product, continuing to use this product could save me a lot of money. The car also appeared to be more responsive when accelerating and it also felt like a smoother drive.”

Jonjo tested the product in his John Deere 6910 tractor & he was mowing for a full day. The tractor uses red deisel & before using the Enviro Kleenze™ additive he was averaging 18-19 ltr per hour. Once he put in the Enviro Kleenze™ additive the tractor was then averaging 15-16 ltr per hour. This means there was approx. 16% decrease in fuel consumption. They also carried out an opacity test on the vehicle & it was burning the fuel cleaner

Stephen Nixon tested the product in a Renault Master ’21 2.2 ltr diesel Euro 6 van with just over 40,000 miles on the clock. His test was carried out over a much longer period. From May 1st to May 29th the vehicle was not treated with the Enviro Kleenze™ additive, it went 1858 miles, averaged 33mpg & had a smoke reading of 0.28. From May 30th to June 27th it was then treated with the Enviro Kleenze™ additive, it did 1435 miles, averaged 37mpg & had a smoke reading of 0.01. This means that there was a fuel consumption decrease of over 11.8% and smoke reduction of over 96%. This has in turn stopped the issues with the dpf filter as since using the product the dpf light has gone off and he has had no further issues, saving both time and money as the van is no longer off the road or in a garage

Richard Chaumeton – EnviroKleenze

I have been using EnviroKleenze fuel additive since the Spring of 2021 in my building business vehicles, VW Caddy van, Ford Fiesta van, Renault Master 3500Kgs Tipper and VW Crafter. Since using the EnviroKleenze fuel additive in my VW Caddy where I had been doing the same journey to a contract for a year and a few local trips I was only getting 370 miles from a tank. After using the EnviroKleenze fuel additive I was able to get 410 miles from a tank of diesel, this is an 11% increase miles per gallon. Also, the exhaust fumes smell of diesel reduced considerably.

When the EnviroKleenze fuel additive was used in Ford Fiesta van, Renault Master 3500Kgs Tipper and VW Crafter the reduction in the exhaust fumes smell of diesel reduced considerably. Also, less fuel was used in all of these vehicles by up to 10%. I have now sold the VW Caddy and use the Ford Fiesta Van on a day to day and I am getting at least 10% increase in MPG. I did a long journey some weeks ago and was able to get 60MPG on the motorway, I drove 544 miles on a tank and only put 9 gallons of diesel in the tank to refill.

Also, all the vans run much quieter and I have had many comments from people how quiet the engines are.

I recently drove to Alps in a Audi Q7 2019 3.0 V6 diesel for a ski holiday and on the way to the Alps I had 30.9 MPG when I arrived after 746 miles. On the way back I put the EnviroKleenze fuel additive in the tank and upon my arrival back in the UK I was able to get 34.1 MPG after 756 miles, this is an increase of 10.5% in MPG. EnviroKleenze fuel additive enables the diesel fuel to burn a lot cleaner, more efficiently and can increases your MPG by around 10%. Also, I have noticed a much better pickup when pulling off the a standstill and more power from the engine in all the vehicles that I have used EnviroKleenze fuel additive in. I have used the EnviroKleenze fuel additive in my XK Dynamic R Jaguar and on a long journey to Leeds and back I am able to obtain 31.8 MPG traveling up to Leeds and 32.2 MPG driving back to London. These figures were obtained driving at speeds of 70 MPH to 80 MPH

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Where it all started