
The world’s first BOXER DIESEL for a passenger car first became available on the 2008 Legacy and Outback models and it has continued to evolve since then. Now slated to be mounted on the Forester, the BOXER DIESEL engine has delivered the levels of quality and sophistication that the Subaru brand identity demands in every vehicle, yet it also expresses characteristics that are suited to each individual model.
Subaru has received enthusiastic comments from drivers and journalists, many of whom are eagerly anticipating the next generation of BOXER DIESEL. Some wonder if Subaru is considering developing a 6 cylinder BOXER DIESEL. Others wonder if there will be a more powerful BOXER DIESEL for an Impreza in the future. Although the possibilities are endless, the fact remains that Subaru vehicles with the BOXER DIESEL have just been introduced in a handful of markets in Europe. We will continue modifying the engine to further elevate its performance and to increase its appeal to drivers.
The BOXER DIESEL also features environmentally sensitive technologies, which further improve the vehicles they are applied to. For example, the new diesel particulate filter (DPF) in the Forester is a closed-type DPF, whereas the DPF originally used in the Legacy is an open-type DPF.
While the BOXER DIESEL is in compliance with the EURO 4 emission standards, Subaru continues to work on emission control systems that meet more stringent standards around the world, including EURO 5.
Masuda remarks on the future vision for the BOXER DIESEL: “There will be technologies, yet unknown to us, that may be potentially useful in diesel engine development. We are striving to further improve on fuel economy, as well as to reduce gas emissions. To place our product on a driver’s wish list, our product must embody the future in the mind of the driver. No matter what advanced technology is offered in our vehicle, the driver may not choose it if it is not exciting, despite an appreciation of the technology. I believe the BOXER DIESEL has a


special appeal that allows the driver to glimpse the future. And I feel that it is significant that Subaru unveiled this product at the company’s fiftieth anniversary.”
The image of diesel engines as stogy but economical and sturdy is obsolete. The time has come when sophisticated diesel engines with power and performance, as well as fuel economy, are in demand. The BOXER DIESEL with a Subaru identity was created on this premise. If you drive the BOXER DIESEL, you will understand its distinguished performance and see the potential for its future possibilities.