Experimental study on the effects of Maz Nitro additive on engine performance and emissions

• Maz-Nitro additives decreased fuel consumption by 9.8% in gasoline engines and 8.2% in diesel engines. • CO and HC emissions were substantially reduced, with CO reduced by up to 65.5% and HC by 27.2%. • Fuel-system materials exhibited no significant additional degradation when exposed to Maz-blended fuels. • Lubricant analysis indicated lower concentrations of wear metals, reflecting improved engine protection. • Engine components did not exhibit statistically meaningful increases in wear compared with baseline operation. This study presents a comprehensive experimental investigation into the effects of Maz-Nitro additives (Maz 100 for gasoline and Maz 200 for diesel) on engine performance, fuel consumption, emissions, and material compatibility under both laboratory and road test conditions in Viet Nam. The research utilized A92 gasoline with Maz-Nitro 100, composed of 65%-90% base Maz ingredients and 10%-35% OGA-72012 (a mixture of aromatic hydrocarbons and microelements), and 0.05% S diesel with Maz-Nitro 200, composed of 65%-90% original Maz ingredients and 10%-35% Di-tert Butyl Peroxide (improved ether oil). The test fuels were blended with Maz-Nitro according to standard procedures and evaluated using chassis dynamometers, constant volume sampling (CVS) systems, and real-world driving cycles. Parameters examined included brake power, fuel consumption, exhaust emissions (CO, HC, NOₓ, CO₂), lubricant degradation, and wear of key engine components. Results showed that Maz 100 significantly reduced CO (65.53%) and HC (27.22%) emissions and improved fuel economy by 9.8%, albeit with increased NOₓ and CO₂. Conversely, Maz 200 achieved simultaneous reductions in CO, HC, NOₓ, and CO₂ by 34.82%, 20.93%, 22.22%, and 6.93%, respectively, alongside an 8.2% reduction in fuel consumption. Additionally, the additives did not increase engine component wear, highlighting their potential for sustainable automotive applications by enhancing performance and reducing environmental impact.