I have seen several of you talk about getting a SG-II. I have a 2008 Escape Hybrid. Will adding a SG-II be helpful since it is a hybrid?
A Scan Gauge will help anyone - hybrid or non-hybrid. It allows the driver to know more about what the vehicle is doing. It comes highly recommended by everyone here.
There is a "ScanGauge IIa" in development that will include specific hybrid features, and it may be available very soon. I'd recommend waiting just a bit so that you can purchase "IIa" given you have an FEH. Somebody may have a good reason why you shouldn't wait that I don't know of. They'll tell me why I'm wrong.