V70 Cruise control

[liuleichan]

>I've noticed fuel economy drops by a few mpg when you use the
>cruise control. It accelerates much harder than you would
>normally do yourself to maintain the set speed.

What makes you think that using most of the engines power capability would be inefficient?

Hard acceleration, followed by hard braking, I can understand your thinking - but hard acceleration followed by cruising, is likely to be more economical that gradual acceleration up to the set speed, then cruising.

>This is shown
>on the instantaneous fuel economy setting on the computer
>which jumps up and down a lot.

Accelerating slower, isn't necessarily more econmical.

>I never use the cruise control on my car as I find the roads
>too busy.

Each to their own, but on the motorway, I find it invaluable.