BMW has a new version of their award winning 3.0 litre twin turbodiesel engine equipped with a technology they call BMW BluePerformance. This particular version is emissions-legal for all 50 US states (BIN5, including California), while the normal version is not, as some states have stricter emissions rules than others.
The new BluePerformance 3.0 twin turbodiesel makes 265 horsepower, which is slightly lower than the normal engine’s 286 horses. It achieves the lower emissions through the use of a urea injection system in the exhaust stream. The urea solution is called AdBlue, and is contained in two tanks with a total capacity of 23 litres.
One tank is called the active tank, which measures 6 litres in capacity. The urea is carried from this active tank, which has heated dosage pipes to ensure the urea does not freeze during cold weather. The second tank is a passive tank that acts as a reservoir tank, which replenishes the first tank when needed.
The US debut for is new engine will be in the BMW X5 xDrive35d and the BMW 335d.