Not sure if this is the right place to post this but I'll try it.
I read somewhere on here about some older vehciles having an in the dash vacuum gauge. Evidently you can modify your driving style by watching the gauge in order to get the best mileage. I'm intrigued by this idea. I need to get a new vacuum gauge because the last one I got from HF isn't working right. I thought maybe I'd run a line from the intake back into the cab and hang the gauge from my GPS mount.
If I do this, what am I looking for? Should I try to keep the vacuum above a certain level? What does right look like while you're driving?
If the concept proves useful, I'll have to find an actual vacuum gauge that can be properly mounted. Anyone have any ideas on a source for one of those?
