I've never seen it operate at highway speeds

It does operate at all speeds as shown in the photo:

 

I'm a retired mechanic, so what are you?? The system is the same in a Hybrid or Gas version, maybe you didn't know that?

You may benefit as well from reading my old thread from '09 posted somewhere above.

 

If the road was dry hard pavement and not going downhill, there's something wrong. Either with the 4WD system or the fact that your using three SG's chained together. I've metioned this in the CleanMPG forum and I'm not the only person that thinks that this could cause a problem.

Back before a few KnowitAlls ran DesertDog/CarlD. from the forum, he had me use some command and out of nowhere came the 4WD response because it was one of the four shown at that time. I had to deselect it to run his command test. This leads me to believe that an SG-II can get confused.

No personal attack here but I'd try that with one SG and see what you get. You shouldn't see any rear wheel torque going that fast unless possibly coast downhill as I've seen just a few percent, not even sure if it should do it then either.

 

Well, I think my original post stands. I've never seen it run at highway speeds. How fast were you going?

 

I'm with you on this point. This is the second time that I've tried to get the point across.

 

The photo---see the radio portion--states 56mph.

 

You have a problem then!

 

Ah, thanks. I specifically did not want NAV on mine, so I'm not familiar with the display. So it operates at speed? Well, at least some of the Ford advertising was right...

 

Not so or at least it looks like a sunny day. Unless BillyK states that he was on snow, ice. an oil spill or possibly coasting downhill, it "shouldn't" engage at that speed. Has to be a demand like wheel spin or something.

 

Some of the original advertising said it would engage at higher speeds "intelligently".