I agree with Shiloh. Everything seems like you're doing a lot of what I do. Although I usually check tire pressure every 1 to 2 weeks, and actually have them inflated to 37/35.

The one issue I have noticed is that there are times when the engine should be shutting off and reverting back to battery-only, but doesn't. It doesn't happen all the time either, just sometimes. Temp is good, HH is warmed up, battery is above 50% capacity, but I can't get the darn thing to shut off unless I come to a complete stop. 5-10 seconds later it dies, and *then* I can proceed on battery only.

I haven't noticed any real difference between battery/engine when at highway speeds either.

Rick