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P a r t i a l L i s t O f

R e n t a r F u e l C a t a l y s t U s e r s

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HARDRIVES Road Contractor

Hardrives, Inc. is a 50 year old construction company doing major interstate projects.

The first 18 Rentar Fuel Catalysts purchased averaged better than 13% reduction in fuel consumption and two or thee times that percentage in black smoke and exhaust pollution reduction.

"This is to confirm that Hardrives, Inc. has purchased and tested 18 Rentar Fuel

Catalysts for more than one year. The results averaged better than 13% reduction

in fuel consumption and two or three times that percentage in black smoke and exhaust pollution reduction. George Elmore, the owner of Hardrives, Inc, has authorized and we are in the process of installing Rentar Fuel Catalysts on all applicable vehicles of our 180 vehicle fleet."

ROGERS GROUP

Rogers Group, Inc. is a growing, 98 year old company providing crushed stone, sand and gravel, asphalt, highway construction, concrete masonry and construction materials recycling. The company employs 1,500 in five states.

Rogers Group equipment manager Cameron Druyor has reported on the first 18 machines including haul truck, wheel loaders and generators an average fuel consumption reduction of 7.5%. On a L330D Volvo wheel loader which is already pretty efficient, Cameron Druyor reports a 6% improvement.

He says, " It's pretty easy to do the math", Druyor says in a Rock Product Magazine article, "There's a 3309 Terex haul truck that went from 12.8 gallons per hour down to 10. There's 2.8 gallons that you are not buying.

See Article in Rock Products Magazine at www.teamrentar.com/pdfs0506/14rpm.pdf

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RINKER MATERIALS

Rinker Group (Rinker) is an international heavy buildings material company formed by the combination of several strong, high-caliber organizations.

Rinker Materials is one of the largest producers of quarry products

in the United States and owns the largest quarry, which is located

in Miami, Florida.

After significant experience with Rentar Fuel Catalyst, Rinker materials

has begun installation on their entire fleet of quarry equipment.

The Fuel savings being experienced is approximately 5%

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State of Delaware

Rentar Environmental Solutions was awarded a 3 year contract to supply Rentar Fuel Catalyst to both the Department of Transportation and for an Agriculture program. The State of Delaware purchases Rentar Fuel Catalyst to help reduce particulate matter and greenhouse gases.

The State of Delaware established the above "Emission Requirements" for Existing Non-Emergency Generators. A generator can be exempt from emission standards, if among other things, the generator is equipped with a Rentar Fuel Catalyst. The State is providing the Rentar Fuel Catalyst to users at no cost.

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City of New York

The City of New York has purchased Rentar Fuel Catalyst for trucks servicing the New York Department Of Environmental Protection.. The Rentar Fuel Catalyst significantly reduced the Black Smoke many of the trucks were producing and they have enjoyed a substantial reduction in fuel consumption.

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Baron’s Seafood, Inc

"I own and operate two steel hull shrimp trawlers. The MN THE BARON is a 104' vessel with two V8. 860 HP-149 Detroit Diesel engines. The MN MISTER B is an 87' vessel with one V12 700 HP-149 Detroit Diesel. In September 2001, Rentar Fuel Catalyst units were installed on both boats. Based on past experience, I believe that we have seen savings in fuel consumption of at least 5% on each boat since the Rentar units were installed. I am pleased with the performance of these units"

Raffield Fisheries, Inc

"We installed a RENTAR fuel efficiency device on one of our largest offshore fishing vessels, the FN CAPT SALTY. It is powered by a single 750Hp MV129 Detroit engine. In our first trip and under some rough sea conditions we were able to reduce our fuel consumption by 4% and we think that reduction rate will increase in the future. A side effect is less smoke and soot and more efficiency all together. Raffield Fisheries is very pleased with our Rentar and intend to use many more of them. "

nKittle Heavy Hauling

"We have installed the Rentar Fuel Conditioner on our Western Star tractor, which has a 1995 Caterpillar 3406C diesel engine. This tractor pulls a Low Boy trailer and hauls heavy construction equipment. Prior to installing the Rentar, the fuel mileage on the truck was 4.1 miles per gallon. After running for three weeks with the Rentar installed, the mileage was up to 4.9 MPG, which is approximately a 20% increase in fuel mileage. Not only was the mileage increased, but also the driver reports a substantial increase in power. He is very happy with it. It is apparent that we are lowering our hauling costs with the Rentar, and that it will pay for itself in a short of time. I plan to install the Rentar in other units. Please feel free to show this letter to anyone who could take advantage of the fuel savings the Rentar will give them."

nSmith Truck Leasing

"I am a private hauler for Scituate Pre-Cast Concrete Products: I installed the Rentar Fuel Catalyst on my Kenworth powered by a 1986 Cummins STC 500lip engine. Prior to installation of the Rentar I was getting 4.5mpg. Since installing it and running it since July 2002, my mileage has increased to 5.2mpg, a 15.5% savings. With the rising cost of fuel today, this becomes even more important. Before the installation I would travel at 1800 RPM. I am now traveling the same roads with the same loads at 1450 RPM, 350 less. This will make my engine last longer. I have been telling all my friends about the Rentar Fuel Catalyst and how it has improved my overall performance. In summary, I am saving on fuel, running at lower RPM's and my exhaust is nothing but heat waves. My engine is also running smoother

Florida Rock And Sand Company

"Just a note to let you know that the Rentar units we have installed on our equipment are all giving us a savings. The amount seems to differ with type, engine manufacture, and application. We have had units on our machines since October 1996 and all are working well. A random sampling of machines with Rentar on Crushers show the savings realized is anywhere from 5% to 19%. One interesting side effect upon reviewing our oil analysis is that there has been a reduction in soot levels. Further study could result in extended' change intervals."

PS Incorporated

"Our company operates two 104' deep-water shrimp boats in the Gulf of Mexico. They are identical boats both with two KT-425 Cummins Engines. One had the Rentar Fuel Catalyst installed and one did not. Both were topped off before leaving port. They operated for three days in the same conditions never out of sight of one another and came back together. The one without Rentar took 10,400 gallons to top off and the one with the Rentar Fuel Catalyst only took 9,200 gallons or a 1,200 gallon savings. At this rate Rentar will recover its cost 6 to 7 times a year. In addition we had much less smoke and soot on our rigging as well as less diesel smell. Needless to say we bought a Rentar Fuel Catalyst for the second boat before they went back out."

Frank Patti of Patti Shipyards, Incorporated

reported that they operated two 104 foot deep water shrimp boats in the Gulf of Mexico both with identical KT-425 Cummins Engines. Both boats always consumed the same amount of fuel. They were topped off before leaving port. One boat had a Rentar Fuel Catalyst installed and for three weeks the two boats were always in sight of the other. When they returned both boats were topped off again with the boat without the Rentar taking 10,400 gallons and the one with the Rentar Fuel Catalyst taking only 9,200 gallons, a savings because of the Rentar Fuel Catalyst of 1200 gallons, which equals an 11.5% reduction in fuel consumption. Mr. Patti writes: "At this rate the Rentar will recover its cost 6 to 7 times a year…In addition we had much less smoke and soot on our rigging as well as less diesel smell."

Mike Connell, President of FCB Distributors, Inc.

reported that they installed a Rentar Fuel Catalyst on a Kenworth powered by a 3406 Electronic Cat engine. Mr. Connell wrote that they increased their mpg from 4.7 to 6.2, a 32% increase in fuel efficiency.

John Beerman, President of Valley Recycling

reported that they installed a Rentar Fuel Catalyst on a Morbark Tub Grinder equipped with a CAT 3412 diesel engine. They ran the grinder 10 hours per day 5 days per week. Prior to the Rentar Fuel Catalyst they consistently burned 100 gallons per day. After installation of the Rentar Fuel Catalyst they consistently burned 80 gallons per day, a 20% savings. He reported improved performance and substantial savings. He writes: "I anticipate a savings of approximately $4000 a year in fuel cost on my CAT 3412 this year and every year there after."

Baron’s Seafood, Inc

"I own and operate two steel hull shrimp trawlers. The MN THE BARON is a 104' vessel with two V8. 860 HP-149 Detroit Diesel engines. The MN MISTER B is an 87' vessel with one V12 700 HP-149 Detroit Diesel. In September 2001, Rentar Fuel Catalyst units were installed on both boats. Based on past experience, I believe that we have seen savings in fuel consumption of at least 5% on each boat since the Rentar units were installed. I am pleased with the performance of these units"

Rapid Roll-Off & Recycling, Inc

"This is to confirm that Rapid Roll-off, Inc. has purchased and tested the Rentar Fuel Catalyst for three months. The results were a savings of two and one half gallons per hour and at least a fifty percent reduction of black smoke and exhaust pollution. As owner of Rapid Roll-off, I am please with the performance of the unit and I am authorizing the installation of the Rentar Fuel Catalyst in other applicable vehicles in our fleet. It has been a pleasure working with you and your company. "

Inland Aggregate

"We are in the concrete and aggregate business and installed Rentar units on two portable engines used in crushing gravel. They generated a 22% savings in fuel over a 60 day trial period. These units literally paid for themselves in less than 3 months - now those cost savings go straight to the bottom line."

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Pepsi Cola of Venezuela

On behalf of the Ministry of the Environment, Pepsi Cola of Venezuela established that the Rentar Fuel Catalyst reduced emissions and fuel consumption.

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Stamm Trucking

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Monterey Coal, An Exxon Mobil Company

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Stock Trucking

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Optenaker Trash Services

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Amtrack

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Braun Trucking

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A. Tannunbaum Company, Inc

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American Ref-fuel

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U.S. Coast Guard

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State of Delaware Department of Transportation