Dynamic performance with ECU?

jamesdean

Member
 Northants
So it's just been 2 weeks now and the Z4 is officially my new all time favourite (owned) car.

Earlier this week, I decided it was about time to get heavy with the right foot... At first I was a little miffed about an almost dampened performance, but literally minutes if not seconds later, it had gone.

The next time I drove it was fine. It was the just the other night, I had to do some motorway miles, and looking at the MPG (I reset it for the trip), my previous 38-45 was now more like 25-30, no matter how easy I went.

Very odd I thought, but soon found that easeing on and off the accelerator slowly over a distance of about 30 miles vastly improved the MPG!

So what gives? It's almost like the ECU is adapting to your driving style, or is this me just being a proper n00b here? :headbang:
 
It has been reported by others that rapid acceleration is a killer for the mpg not necesarily the speed you are going. :!: Wind direction would in theory affect your mpg as well, I know it does for aircraft.
 
The ECU does adapt.
I do a lot of motorway miles, which means it feels "dampened" a bit. Hit the sport button and give it a good spirited drive and things perk up a bit, and stay perky for a while after.
 
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