Question raised in Lok Sabha on Use of Methanol to Reduce Green House Emissions, 27/06/2019. The Government has notified mass emission standards for flex-fuel methanol M15 or M100 and Methanol MD 95 vehicles. M-15 is a blend of 15% methanol and 85% gasoline. Use of blend fuel M-15 in BS-IV cars can result in lowering down greenhouse gas (GHG) emissions by about 5 to 10 percent thereby improving air quality. M-15 fuel blending is available as an option and there is no proposal to make such blending mandatory in the near future.