[Cobb]

A quick trip to the machine shop should make that no problem.

Originally Posted by MetroMPG

Mazda says:

So says Mazda's chief exec for powertrain development, Mitsuo Hitomi.

Though he's talking about HCCI petrol engine development, not a "lean burn mode" in an otherwise standard engine.

http://www.autonews.com/article/2014...on-skyactive-2