"The diesel engine can be fed with vegetable oils and would help considerably in the development of agriculture of the countries which use it"

"The use of vegetable oils for engine fuels may seem insignificant today. But such oils may become in course of time as important as petroleum and the coal tar products of the present time."

Rudolf Diesel 1911



Frybrid manufactures the only commercial conversion systems not incorporating the "looped" fuel return design, our switchover times from VO back to Diesel are the lowest available averaging 7-10 seconds on Mercedes applications and 3-5 on VW applications!

Frybrid maintains the cutting edge of Diesel/Vegetable oil hybrid vehicle technology!

Frybrid firsts:

Computer controlled system - No more guessing
Temperature sensing system -
Will not switch before proper fuel temp is reached
High efficiency final fuel heat exchanger -
Speeds switch-over times to 1/4 of other systems
Vegetable oil / Diesel / Biodiesel specific solenoid valves -
Industrial quality components
Component in-tank heater -
Billet aluminum unit, every in-tank connection is welded and leak proof
Aircraft aluminum heated fuel lines -
Highest heat transfer & longest lasting
Multi plate high efficiency filter heater -
Uses readily available filter with full flow design
Fuel selector solenoid valves- Designed specificaly for veg oil and bio diesel with high flow rates


Frybrid manufacturers the worlds most sophisticated vegetable oil conversion system for diesel engines. Each and every component of our systems is designed to exceed its system requirements and each exceeds the functionality of our competitor's components. The Frybrid system uses 4 individual heat-exchanging components and is controlled by a microprocessor insuring that vegetable oil below the required temperature is never injected into the vehicles engine. Our system is in fact so revolutionary that we have applied for three patents on various components.

Most systems rely on only a small in-tank heat exchanger to heat all the fuel in the tank to injection temperature, the Frybrid system, however, utilizes four. The first being a welded high efficiency coiled heat exchanger in the aluminum, baffled tank with the fuel pickup positioned directly in its center. This assures that all fuel being drawn from the tank is liquefied and lessens the strain on the injection pump and or fuel pump. This single heat exchanger is more efficient than those used by any of our competitors. All internal tank connections for both fuel and coolant are TIG welded to insure a leak proof system. The integral fuel resovouir prevents fuel starvation when cornering, stopping or accelerating when low on fuel. None of the metals in contact with the fuel tank are reactive and the heat exchanger has more than 30 sq ft of surface area.


Next is the Frybrid heated fuel line, this line is connected directly to the top of the fuel tank, the line is made from Aircraft aluminum fuel line running inside a " coolant hose. We have found this line to have better heat transfer than any other line configuration.
Next is our Frybrid heated fuel filter, which incorporates a 14-plate flow through heat exchanger through which all fuel must flow before being filtered. This unit heats the fuel very efficiently insuring that the filter will not slow the flow of fuel even in cold climates and utilizes a readily available diesel filter element with an integral drain.
Lastly we employ a final fuel heat exchanger which on its own is capable of getting all fuel used by the engine to injection temperature as soon as the engines coolant is at 180F.

The Frybrid GEN-3 microprocessor is the world's first solid-state vegetable oil fuel system controller and raises the bar in this field. The Frybrid GEN-3 monitors engine coolant temperature and seamlessly switches the engines fuel supply from diesel or Bio-diesel to vegetable oil only when the vegetable oil is at the proper temperature preventing the injection of cold vegetable oil which results in engine damage. It also warns the operator if the vehicle is shut down on vegetable oil, provides system status indicators and automates the purge cycle allowing for faster engine shutdown. Nothing else even comes close!
Here at Frybrid our goal is to produce only the highest quality conversion systems, systems that incorporate materials from the aviation, automotive and electronics industries and are constructed to the highest specifications. Our systems are not the least expensive; they are however, the best. We do not use floor-heating tubing for fuel line or transmission coolers dangling in plastic outboard fuel tanks. We do not require that you heat all the fuel in the tank before you switch fuels, or worse yet, manufacture a system which is not capable of heating the fuel sufficiently. What we do is manufacture a system which works, and works very well. A system, which prevents the engine damage associated with other systems, a system I trust enough to have my family use everyday.

Christopher Goodwin