(1) What is this?
(2) Should it be on at all times?
(3) What effect on gas mileage?

I did notice much more 'pep' and quicker response.

Thanks.

 

1) you answered it with your last sentence, that's what it does.
2) up to you
3) of you go easy, than none. if you have too much fun... u'll pay for it.... gas wise.

 

Changes throttle response, and gear change point - in other words, hangs onto each gear more, and slightly less lag on the throttle pedal.
Snow does the opposite for those with a lead (Pb) right foot.

 

I leave mine on all the time. It fits my driving style more. I get better mpg with it on.

 

I turn to snow mode when I have sleeping passengers. Soft driving.

 

SLOW4DR,

Even better MPG on the highway - interstate driving?

 

highway driving is where you are going to get your best MPG anyway because you dont have a lot of stopping and going. you can get better gas mileage with the ECT button but just like any other MPG thread, it all depends on your driving habits.

 

I'll have to use that snow button some times..haha

 

Same here.