This concept is a sublimation of the earlier practice of testing fuels and advising results to the customer. It will now be a total service, which will be to advise the customer when and where, and how to buy the best fuel for the best price. Not only this. It is also to test the fuel, determine its properties (not merely the specifications) and using these properties to manipulate the controls in the machinery through mechanical and chemical means to obtain maximum thermal efficiency with minimum wear and tear. It is a specialization which calls for a deep knowledge of the bunker market, the best purchasing strategies, a thorough understanding of the machinery consuming the fuel, a deep knowledge of petroleum fuels, their properties and their behavior and to assemble this knowledge base to obtain maximum return to the fuel consumer for the money spent in the purchase of the fuel.