DaimlerChrysler, the parent firm to Mercedes, Chrysler, Dodge and Jeep, has set out a four point strategy for its green fuels.

First from DaimlerChrysler will be "optimisation of conventional engines" which includes the introduction of a system for diesels branded Bluetec. The system, first shown in the E-class, CLS-class and GL at March's Geneva motor show, will reach Europe in 2008.

Bluetec uses purified urea as a fuel additive in diesel engines to make them more efficient in terms of power and fuel consumption. DaimlerChrysler has now extended the range of vehicles this will become available in beyond Mercedes, with the Jeep Grand Cherokee first in line.

Mercedes claims the Bluetec technology will allow it to pass Euro5 emissions regs.

Beyond engine optimisation DaimlerChrysler plans to introduce hybrid technology; synthetic fuels and finally hydrogen power.

The plan includes two sorts of hybrid; a lightweight "mild hybrid" that boosts efficiency but won't allow all-electric running, and a more conventional hybrid system that offers all-electric driving in certain situations, such as town driving. This full hybrid is being developed in conjunction with BMW and GM.

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