Nissan’s focus on reducing emissions is not just restricted to creating electric vehicles such as the award-winning Nissan LEAF. The company now introduces a new petrol engine which produces just 95g/km of CO2 making it one of the lowest in the world today. Known as the DIG-S, the engine is a direct injection unit with a supercharger − hence the car’s name: Direct Injection Gasoline-Supercharger. It delivers sparkling performance, frugal economy and exceptionally low emissions. It has been designed to meet and exceed the everyday driving demands of the modern world and is the ideal partner for Micra (also known as the Nissan March), Nissan’s small city car. Tan Chong could easily bring this car in to challenge the fuel efficiency of the VW Polo TSI and lead in the premium small car segment.
Technical innovation has been packed into the engine. The DIG-S uses the Miller cycle and direct petrol injection to raise the compression ratio to 13 to 1 for greater combustion efficiency and a supercharger for instant throttle response and added power. As well as delivering ultra low CO2 emissions, the lightweight, low-friction 1,198cc three-cylinder unit produces the power expected from a conventional 1.5-litre four-cylinder engine.
The results are spectacular. The DIG-S engine produces 72kW (98PS) and 142Nm, while CO2 emissions are 95g/km for the manual version and 115 g/km for the CVT version. Maximum speed is 112mph for manual. Combined cycle fuel economy figures for the manual Visia version is 68.9mpg.
By minimising heat, friction and pumping losses as much a possible, Nissan’s engineers have created an engine that sets the standard for the rest of the industry. Its three-cylinder configuration gives many benefits including less weight and further reductions in friction loss, thanks to having fewer moving parts. Further gains are made thanks to the adoption of advanced engine management systems with Start/Stop and energy regeneration.
This remarkable engine which adds to Nissan’s PURE DRIVE* range, makes sub 100g/km emissions performance easily accessible while low cost of ownership make it a serious alternative to a comparable diesel, with the added bonus of greater refinement.
