Well, that's if you want to play the economy + planet saving game. If you don't care about it, just use the car as is, e.g. Normal mode.
I actually find this to keep me involved in driving and less sleepy/tired after long trips.
And, of course, I'm really into making sure the money I invested in this car is going to make sense compared to the previous petrol Outlander I had. So far, so good.