D-4D
"The technically advanced Toyota D-4D is a common rail four-stroke diesel engine with direct injection."
How does it work?
The secret of the Toyota D-4D’s outstanding performance is an electronic control unit that accurately balances fuel injection pressure, timing and volume according to how the car is driven and the demands being made on the engine.
Using Piezo-electric injectors, common rail technology injects finely atomised fuel at high pressure directly into the combustion chamber, including a small amount of fuel just before the main fuel load ignites. This ‘pilot burn’ lowers the explosive force of the main combustion process and goes a long way to reduce the noise and vibration formerly associated with diesel engines.
- The engine always works at maximum efficiency
- Power and torque optimised
- Excellent fuel economy
Customer benefits
D-4D provides much quieter diesel power, virtually indistinguishable from a petrol engine when driving almost closing the NVH gap with petrol engines
More power, torque and flexibility make a D-4D powered car superior to older diesel technology
New lower emissions 2.0 D-4D engine available in new 2012 Avensis
The revised 2.0 D-4D diesel engine in the new 2012 Avensis features lower CO2 emissions and greater fuel efficiency – yet delivers smoother torque across the range. Fuel consumption has improved by 13% to 61.4mpg (combined cycle) and CO2 emission have been reduced by 19g to 120g/km while not compromising on performance by delivering 124bhp. The revised engine allows Avensis to be subject to annual road tax of just €160.