Volvo is introducing two 2.4-liter, five-cylinder, turbo diesel engines: the twin turbo D5 with 420 Nm of torque and 205 horse power, and the single turbo 2.4D with 420 Nm of torque and 175 horse power.
The higher powered engine has already been launched in the Volvo S80, but both engines will soon be available in Volvo V70, Volvo S80, Volvo XC70 and Volvo XC60 in most markets by spring of this year.
Among the two D5 engines, the twin turbo engine is also more fuel-efficient. The engine allows for a higher level of exhaust gas recirculation compared to other engines. The twin turbo D5 effectively combines high performance with low fuel consumption.
The single turbo 2.4D was also optimized to use up lower levels of fuel. The engine is set to have a different injection system compared to the one D5 nestles. Its fuel efficiency and combustion will depend thoroughly on precise fuel injection sequences.
Both of these engines have low compressions, more efficient combustion, and the latest line of engine management. Volvo worked hard to reduce the internal friction and pump losses in both diesel engine designs.
Volvo’s new single- and twin-turbo diesel engines also come with ceramic glow plugs. This allows for quick warm ups, which translate to great starting properties.
These glow plugs can reach up to 1000°C in two seconds, making way for easy start ups and lower emissions. During low revs while driving, the glow plugs can also raise the temperatures in the cylinders, therefore improving the vehicle’s combustion efficiency.