I have a hard to find 4 gauge cluster for my 2005 Outback. Now i always have bat, oil pressure, tranny emp gauges. So I have a hole to fill. I am leaning towards a vac gauge for hole #4. I thought about an oil temp gauge, and would be a pita to install, and really have never sen oil temp being an issue unless the car overheated. I see no need for an A/F ratio gauge in a non-turbo car. I would love an inclometer but havent found one that would fit a 52mm hole.
So what would you put in there?