Renault 1.5 diesel....

[mcrews]

Renault introducing two new Energy range engines: Energy dCI 90 and 75

22 February 2012

http://www.greencarcongress.com/2012...-20120222.html


New Energy dCi 90 engine. Click to enlarge.
Renault is introducing two new 1.5L diesel engines in its Energy family (earlier post)—the Energy dCi 90 and 75—and applying them first in the Kangoo range. Fuel consumption will be 4.4 liters/100 km (53.5 mpg US), equivalent to 115g of CO2/km. Oil change intervals have been extended to every 40,000 km/two years, instead of every 30,000 km/two years, the longest in the engine’s class. In total, running-cost savings amount to 14%.
Renault says that the release of the new 1.5-liter, 4-cylinder engines marks the beginning of a new phase in the company’s powertrain strategy. The introductions of the Energy dCi 90 and 75 take the number of engines in the current Energy range to seven. Renault is striving to be the number one brand in Europe with regard to CO2 emissions not only through new technologies for its internal combustion engines, but also from the development of a range of electric powertrains.
Kangoo Energy dCi 90 will be on display at the Geneva Motor Show and is poised to go on sale in France this March; the 75-horsepower version will be available in April.
Renault reworked the current 1.5 dCi 90hp and 75hp engines with the incorporation of technology from the Energy dCi 110 engine which already features in the Mégane and Scénic. The Energy dCi 90 and 75 include features that stem from Renault’s presence in Formula 1. For example, the DLC-coated cam followers use a technique (Diamond Like Carbon) that has been employed in motor racing for some years. The mechanical properties of DLC significantly reduce friction and improve energy efficiency to deliver enhanced performance and contained fuel consumption.
The latest diesel engines also come with ESM (Energy Smart Management) braking/deceleration energy recovery, plus latest-generation Stop&Start developed specifically to enhance driver and occupant comfort due to the following:
No undesirable cutting of the engine in slow-moving traffic: the vehicle’s speed must exceed 4 km/h before the Stop&Start system is re-triggered following a stop.
No fluctuations in cabin temperature, while the audio/navigation systems do no switch off.
Less noise, since the ventilator fan speed is reduced when the engine stops.
Peak torque of the 90 hp (67 kW) version is 200 N·m (148 lb-ft), which is available from 1,750 rpm. Maximum power of the Energy dCi 75 version is 75 hp (56 kW), with maximum torque of 180 N·m (133 lb-ft) available from 1,750 rpm.

[euromodder]

Actually, in this case the engine is let down by the van's bulky body - the Kangoo is a small van-like people carrier.

Renaults new engines do far better in their normal passenger cars - like the Megane, where consumption according to NEDC is down to 3.5L/100 km 67mpg or 90 g/km CO2 despite higher power (dCi 110 HP).
Their petrol engines are down to 119 g/km CO2 in this car.

The NEDC cycle is far harder to beat than EPA though.

[Piwoslaw]

I heard a rumour a while back that Renault's dCi turbodiesels are even more fuel efficient than PSA's HDIs and VW's TDI, but I've found no hard facts. This was before this new version was unveiled.

BTW: Fix the link to the article, it should be:
Green Car Congress: Renault introducing two new Energy range engines: Energy dCI 90 and 75