Full Circle Fuels
14340 State Rte 58 , Oberlin, Ohio, United States

Over the past six years we have established ourselves as one of the most experienced vegetable oil conversion shops in the country with over 300 conversions to date and we are the most experienced dealer/installer for Golden Fuel Systems - the nations leading conversion technology company. We have led classes on the basic principles of using vegetable oil as a diesel fuel locally and as far away as Santa Fe, NM, and we have given professional presentations to local audiences such as the Cleveland chapter of the American Society of Mechanical Engineering.

Since 2005, Full Circle Fuels has been modifying diesel vehicles to burn vegetable oil. We have converted over 300 vehicles including everything from compact cars to semi trucks. We can assist you with every aspect of your conversion from system design to installation to oil collection and filtration to maintenance and service. Currently we have two locations, our original location in Oberlin Ohio open M-F 9-5 and our new shop in Hudson New York specializing in custom work and open by appointment only.

SVO Conversions

Whether you own a VW Beetle, a full sized pick-up truck, or an over-the-road semi we know how to make your diesel run on vegetable oil. Since 2005, Full Circle Fuels has been modifying diesel vehicles to burn vegetable oil. We have converted over 300 vehicles including everything from compact cars to semi trucks. We can assist you with every aspect of your conversion from system design to installation to oil collection and filtration to maintenance and service. Currently we have two locations, our original shop in Oberlin Ohio and our headquarters in Hudson New York. We are also the most experienced dealer/installer for Golden Fuel Systems (GFS) - the nations leading conversion technology company. In addition to installing standard GFS systems we have developed custom designs for many different systems including Suburbans, Blazers, Excursions, Dodge Rams, Chevy Duramaxes, and many others. If you cant sacrifice any bed space in your truck, we have a solution for you: our local welder can make any custom tank needed to fit under your vehicle, in your spare tire area, or any other tight spot. We also have access to new and used parts from a wide variety of different vehicles. Whatever your need is chances are we have already done a system that would work for you and if we havent, we are always happy to work with you to design one.  It takes 2 full days to get a conversion done- for example if we get the vehicle before 10am Monday is will be done by 5pm on Tuesday. Semis, motorhomes, buses and custom jobs typically take 3 days. We provide 20 gallons of filtered SVO per conversion, enough to test drive the system and get you on the road. If you are interested in purchasing more fuel when you get your conversion we can always fill you up the rest of the way.

Custom Fuel Tanks Fabrication

As many conversion require custom fuel tanks, Full Circle Fuels offers custom fuel tank fabrication at our Hudson, NY location. We have lots of experience designing and fabricating these tanks and have developed many designs for common applications. In addition to what you see below, we can work with you to fabricate a tank that will meet your specific needs. Also please note that we ONLY fabricate fuel tanks for use in vegetable oil or biofuel systems- we do not fabrication tanks for GASOLINE or DIESEL applications.

Diesel Engines and SVO Conversions

The diesel engine was invented by Rudolph Diesel and was first deomonstrated at the World Fair in Paris running on peanut oill. While this first successful diesel engine looked nothing like modern diesel engines, it is still possible to fuel a modern diesel vehicle with vegetable oil because the basic principal of compression combustion is the same. To use straight vegetable oil as a fuel, the only requirement other than filtering it is that the oil be sufficiently heated in order to flow through the fuel system. Cold straight vegetable oil has a much higher viscosity than diesel or biodiesel fuel but as you warm SVO the viscosity decreases to comparable levels. This simple concept of preheating the oil to thin it is what SVO systems are designed around. There are many different methods to heat the oil but the most common are with engine coolant and electric heaters- we use both in our systems. Diesel engines create waste heat as they burn fuel and the cooling system on these vehicles is designed to remove this heat from the engine. We simply tap into that system and re-direct this heat to warm the fuel lines and tanks. In addition the alternators on diesel vehicle are heavy duty and we use some of the excess power from these alternators to power the electric heating elements that are installed in all the fuel filters we use. Full Circle Fuels offers the full line of Golden Fuels Systems products with identical pricing. We have been installing these systems for years and know how to do the job correctly and do technical support on both new and mature systems.

What is an SVO conversion? 

A SVO conversion is an aftermarket fuel system that can be added onto any liquid cooled diesel engine, allowing the engine to burn vegetable oil in addition to diesel fuel. Only diesel engines can burn vegetable oil, there is no way to convert a gasoline powered engine to SVO. Cars and trucks arent the only candidates for conversions - liquid cooled diesels include generators, tractors, industrial equipment, boats and any other piece of equipment that is powered with diesel fuel. The term "conversion" can be misleading though, because no original vehicle components need to be "converted" in order to use vegetable oil as fuel. The diesel engine was designed and originally demonstrated running on peanut oil. A SVO conversion is actually an auxiliary fuel system that enables the vehicle to burn vegetable oil in addition to diesel fuel. The basic idea is very simple - we install a parallel heated fuel system. Every component of the system (tanks, filter, lines, etc...) is heated with engine coolant or electric heating elements. Switching valves are installed which control both the supply and return fuel that flow into the engine.