Fuel Consumption Normal Mode / Power mode (Overdrive)

[peeete]

How much more fuel does an auto V6 exec use with 'Power' on?

at the moment without it ever on i get about 200ks to $20 (about 20L)

[dellarb]

It should be identical to economy mode. The power setting for the gearbox just defines how high it revs when accelerating which will only affect fuel consumption if you are constantly stopping and starting.