Sarcoidosis In view of increasing pressure on crude oil reserves and environmental degradation as an outcome, fuels like Methanol blended with Mahua oil may present a sustainable solution as it can be produced from a wide range of carbon based feedstock. The present investigation evaluates Methanol blended with Mahua oil as a diesel engine fuel. The objectives of this paper is to analyze the fuel consumption and the emission characteristic of a twin cylinder diesel engine that are using Methanol blended with Mahua oil & compared to usage of ordinary diesel that are available in the market. A four stroke Twin cylinder diesel engine was adopted to study the brake thermal efficiency, brake specific energy consumption, and emissions at zero load & full load with the fuel of methanol. In this study, the diesel engine was tested using Methanol blended with Mahua oil. By the end of the experiment, the successful of the experiment have been started which is Diesel engine is able to run with Methanol blended with Mahua oil but the engine needs to run by using diesel fuel first, then followed by Methanol blended with Mahua oil and finished with diesel fuel as the last fuel usage before the engine turned off. The performance of the engine using Methanol blended with Mahua oil fuel compared to the performance of engine with diesel fuel. Experimental results of Methanol blended with Mahua oil and Diesel fuel are also compared.