A few hundred miles more down the road and all is still good. I decided to keep the EHM until the weather gets bad, then switch it back. I'll add a permanent solution to my to-do list for spring.
As far a mileage goes, I finally got a full hand calculated tank run through. I was slightly disappointed when I got 20 mpg, especially when I know my speedo is faster than it should be, meaning my mileage is actually a lil less than that. My commute is 85 miles per day: 60 miles flat land 70 mph, 15 miles flat land 55 mph, and the other 10 miles are in town under 40 mph through 7 stop lights. I also drive very easy, because I'm trying to get economy. But here are my thoughts:
First thing I'm going to change is my idle time. I'm letting it idle for about 3 minutes before shutting down (not changing that) but have been letting it warm up for about 10 minutes. I'm going to cut this in half at least and try it, but with it being colder out I don't want to push too much cold fluid around. How long does everyone let theirs warm up for?
Secondly, there was a 20 mile stretch that I had the 4 wheel drive engaged. I've had 4x4 before and know you lose mileage, but I'm hoping that little bit wouldn't change and entire tank's mileage that much. I guess I will know for sure in a month or so.
Third, I'm adding 4 oz of Optilube XPD, and thinking of switching over to Almagamated. Anyone have an opinion between these 2? I've read the other posts with other additives, but haven't see anyone on here talk about these 2 yet.
And finally, I have my list of things to add to improve mileage that I've read on here, but if anyone wants to add their
I'm more than happy to read it. Thanks again all!