[Istas]

stevey_frac: Interesting side-note, the Honda Insight goes as low as 25.8:1 lean fuel burn, all by itself, although the acceleration conditions have to be met for a fairly long time for it to happen and not kick immediately out of it. The harmful byproducts of such a low ratio are stored while it is lean burning, and the engine temporarily goes into a richer mixture to "burn" the stored harmful emissions off periodically.