TOKYO, JAPAN -- Mitsubishi Motors Corp. said it has developed two new fuel-saving technologies: the 4J10 lightweight and compact 1.8-liter gasoline engine incorporating a new version of the company's MIVEC variable valve timing system and the latest version of the company's Auto Stop & Go (AS&G) idle-stop technology. 

Mitsubishi said it expects these latest technologies to play a big part in achieving the company’s own upcoming fuel and environmental efficiency targets.

The new 4J10 engine/AS&G combination will power the Japan-market RVR (ASX or Outlander Sport in some markets) compact SUV, the Galant Fortis sports sedan (Lancer or Lancer EX in some markets), and Galant Fortis Sportback (Lancer Sportback in some markets) 5-door sports hatchback. 

With this engine, the three models show a 12-percent improvement in fuel efficiency (measured by Japanese 10-15 mode). The RVR was launched on Oct. 20, and the Galant Fortis models will launch Oct. 27.