The new standards are part of a broad push to get more Americans into electric vehicles, and reduce the environmental cost of driving.
The new standards are part of a broad push to get more Americans into electric vehicles, and reduce the environmental cost of driving.
Those are such small things. Not even sure you can do some because of the way mileage is calculated - pretty sure part of it is “accelerate from this speed to this speed in this time, so many times”.
Ah fair, some might have more effect in real life than tests.
Still, timing and fuel infection changes alone can change fuel economy by a lot without necessitating a new block or head design.