Hypermiling the Ford Escape Hybrid ...

[GaryG]

Originally Posted by bruski1959

Appreciate the thorough answer Gary!

Wow and I have been adjusting at every fillup! Depending on the outside temperature and type of fuel, I have seen wide variances, sometimes adjusting it by nearly 10%. I generally don't mess with the OEM MPG gauge, as I was unaware that it couldn't store enough data for an entire tank. Thought I could reset it between oil changes. Any idea how much data the OEM MPG meter can store, as in how many miles driven is it reliable for? I can see adjusting my speed % by 1% as that seems to be how much I am typically off. When I can I try to get gas at the same station, same pump, same direction, etc., but that isn't always feasible.

Thanks,
Bruce

Sorry Bruce, I didn't see your response till now.

My Nav Sys MPG average starts to drift from my SGII Tank reading at around 200 miles. I reset my Nav MPG at fill-up and reset the SGII Tank at the same time. No one that I've talk to knows how much data can be stored or how data is dropped in the OEM MPG average.

I'm hoping the new 2nd Generation Nav Sys in my ordered '09 will store more data so we can get a real Tank average.

GaryG

[Sustainable Guy]

As a side note to this thread, we've had the Honda Insight since 2000 and it has a life of the vehicle MPG average display (currently at 58.6 at 82000MI) and then 2 trip meters that show miles and averaged MPG per trip. Lately on our hilly Maine back roads we are getting 60-64 MPG on short trips averaging 45MPH.

So the SGII seems to fit the same needs for me and I'm used to thinking in per trip terms, but I miss the "life of vehicle" average MPG.

Thanks for pointing out the +1% speed correction for the SGII I was wondering which gauge to trust the vehicle or the SGII, now they are both pretty much in agreement.
Guy