Engineered for the Future: Greaves Engineering’s Revolutionary Engines at Auto Expo 2025

Introduction

Greaves Engineering has once again made headlines at the Auto Expo with a series of groundbreaking engine innovations at Auto Expo 2025 held at Bharat Mandapam from Jan 17 to Jan 22, 2025. This premier event, known as the hub of automotive excellence, showcased not only industry-leading performance but also a robust commitment to sustainability.

In a landmark presentation at Auto Expo 2025, Greaves Engineering introduced engine technologies that included the advanced Bi Fuel Engine, the efficient Euro V+ Engine, and the pioneering Hydrogen Powered Internal Combustion Engine – a key component for future Hydrogen Powered Internal Combustion Engine vehicle designs.

Throughout Auto Expo 2025, the spotlight was on all of these engines. The advanced emission control technology of the Euro V+ Engine, the Hydrogen Internal Combustion Engine’s state-of-the-art single cylinder engine design, and the superior performance of the air cooled engine setup for the Bi Fuel engine were highlighted repeatedly.

 

Unveiling the Innovations

At Auto Expo 2025, innovation took center stage. Greaves Engineering presented three engines that underline the future of mobility:

• Bi Fuel Engine: A versatile dual-fuel solution that leverages the benefits of a Bi Fuel engine design, incorporating a robust single cylinder engine architecture. As an air cooled engine, this unit is celebrated for its fuel flexibility and environmental advantages. 
• Euro V+ Engine: A breakthrough Euro V+ Engine that pushes the boundaries of emission control in a single cylinder diesel engine format. This engine not only meets stringent emission standards but also serves as a benchmark at Auto Expo for cleaner diesel technology. 
• Hydrogen Internal Combustion Engine: The star of Auto Expo 2025, the Hydrogen Internal Combustion Engine stands out as a revolutionary, zero-emission engine. It lays the groundwork for next-generation Hydrogen Powered Internal Combustion Engine vehicle concepts.

Let us take a look into all these engines in detail.

The Bi-Fuel Engine: Dual Power for Maximum Flexibility

A Bi-Fuel Engine is an advanced powertrain that can operate on two different types of fuel, usually a combination of gasoline and an alternative fuel like CNG or LPG. This technology allows vehicles to switch between fuels seamlessly, optimising efficiency, reducing emissions, and providing cost-effective operation.

The G250 A BS VI OBD II B Bi Fuel Engine unveiled at Auto Expo 2025 is a game changer in sustainable mobility. This advanced Bi Fuel engine is built around a robust 4-stroke single cylinder engine design and benefits greatly from an air cooled engine system that optimises performance in three-wheeler (L5 category) applications.

At Auto Expo, the Bi Fuel engine with its advanced electronically controlled fuel system was celebrated for its ability to run on both CNG and gasoline, offering flexibility that modern commuters demand.

Key benefits of the Bi Fuel Engine include:

• Fuel Efficiency: The dual-fuel capacity of this Bi Fuel engine enhances fuel economy, a vital factor stressed at Auto Expo 2025. 
• Eco-Friendly Operation: As an air cooled engine and compliant with BS VI OBD II B regulations, the Bi Fuel engine reduces friction and promotes efficient combustion, ensuring it meets stringent emission norms. 
• Enhanced Performance: With a design built on a reliable single cylinder engine framework, low-friction technology, and an integrated catalytic converter for superior efficiency, this Bi Fuel engine continues to be a highlight of Auto Expo discussions for its adaptability and cost-effectiveness.

By combining the benefits of an air cooled engine and 4-stroke single cylinder engine technology, the Bi Fuel Engine is setting new standards at Auto Expo 2025.

 

The Euro V+ Engine: Raising the Bar for Emission Standards

Euro V+ standards represent a significant advancement in emission control regulations, aimed at reducing harmful pollutants from diesel engines. These standards impose stricter limits on nitrogen oxides (NOx), particulate matter (PM), and other emissions, ensuring cleaner air quality and compliance with global sustainability goals. By meeting Euro V+ requirements, engines contribute to reduced environmental impact while maintaining high performance and fuel efficiency.

Another significant innovation presented at Auto Expo 2025 was the G499 W Euro V+ Diesel Engine. This 4-stroke single cylinder diesel engine exemplifies modern engineering with its high-performance, water-cooled design and advanced emission control technology. While the Euro V+ Engine differs from the air cooled engine concept used in the Bi Fuel engine, it remains an essential part of Greaves Engineering’s comprehensive engine portfolio at Auto Expo.

Key benefits of the Euro V+ Engine include:

• Emission Control: The engine’s Euro V+ compliance ensures minimal environmental impact with DoC + DPF + SCR technology. 
• Superior Dynamics: This single cylinder engine with advanced electronic fuel injection technology and 100% first-order balancing not only delivers robust performance but also offers best-in-class NVH (Noise, Vibration, Harshness) levels. 
• Advanced Engineering: The innovation behind this single cylinder diesel engine which includes an HPDC crankcase and PTO cover, a low-friction design, and a closed-loop breather system reinforces Greaves Engineering’s dedication to quality, a theme that resonated strongly at Auto Expo.

The Euro V+ Engine continues to be a reference point at Auto Expo for demonstrating the potential of next-generation diesel technology.

 

The Hydrogen Internal Combustion Engine: Pioneering Clean Energy Mobility

Arguably the most transformative showcase at Auto Expo 2025 was the introduction of the Hydrogen Internal Combustion Engine. As a key player in the realm of Hydrogen Powered Engine technology, the hydrogen powered internal combustion engine offers an eco-friendly alternative that produces only water vapour as a byproduct. These Hydrogen internal combustion engines leverage advanced fuel injection systems to optimise combustion, ensuring high efficiency and zero environmental impact.

Designed around a single cylinder engine concept, the G395 W engine Hydrogen Internal Combustion Engine unveiled by Greaves Engineering at the Auto Expo 2025 is a 4-stroke, spark-ignition, BS VI-compliant, water-cooled engine system that epitomises efficiency and sustainability and is poised to transform the landscape for Hydrogen Internal Combustion Engine vehicle applications.

Please note: The G395 Hydrogen engine showcased at Auto Expo 2025 is a demonstration model only, active development for a production version has yet to be initiated.

Key benefits of the Hydrogen Internal Combustion Engine include:

• Zero Emissions: The Hydrogen Internal Combustion Engine eliminates CO₂ emissions, making it a revolutionary Hydrogen Powered Engine option at Auto Expo. 
• Innovative Design: With a focus on integrating advanced single cylinder engine technology, with a port injection fuel system, an all-aluminium engine, a balancer shaft for minimal vibrations, a flywheel-integrated alternator, and ball bearings for reduced friction, the Hydrogen Internal Combustion Engine offers outstanding performance and reliability. 
• Future Mobility: The introduction of the Hydrogen Internal Combustion Engine at Auto Expo 2025 underscores its potential in powering future Hydrogen Internal Combustion Engine vehicle designs, making it a pivotal element in green mobility discussions.

The repeated emphasis on the Hydrogen Internal Combustion Engine at the Auto Expo highlights its importance as a technology that can drive the future of automotive innovation.

Holistic Impact on the Industry

The impact of Greaves Engineering’s engines at Auto Expo 2025 has been profound. By showcasing the Bi Fuel Engine, Euro V+ Engine, and Hydrogen Powered Internal Combustion Engine in an engaging Auto Expo environment, Greaves Engineering has demonstrated the crucial role of advanced single cylinder engine designs in modern automotive engineering.

Moreover, the Hydrogen Powered Internal Combustion Engine is setting new standards for zero-emission powertrains and is a cornerstone for emerging Hydrogen Powered Internal Combustion Engine vehicle concepts. Alongside the impressive single cylinder diesel engine presented as part of the Euro V+ Engine offering and the Bi Fuel engine, these innovations are a testament to the relentless drive for excellence that characterises every Auto Expo event.

The impact of these engines displayed at Auto Expo is clear. Greaves Engineering is setting new standards by aligning with global sustainability goals, ensuring a cleaner, more efficient future for the automotive industry.

Conclusion

Looking to the future, Auto Expo will continue to be the nexus of automotive innovation. At the Auto Expo 2025 held at Bharat Mandapam, Greaves Engineering did not just showcase engines – it showed how it’s shaping the future of mobility. From the fuel-efficient Bi-Fuel Engine to the Euro V emission-compliant diesel engine and the Hydrogen Powered Internal Combustion Engine, Greaves Engineering continues to push the boundaries of performance, sustainability, and innovation.

Stay tuned as Greaves Engineering pushes the boundaries of what is possible in engine technology and sets new benchmarks for the automotive industry at upcoming Auto Expo events and beyond.