A good investment is
· Ford racing (autometer) oil pressure gauge
· Ford racing (autometer) temp gauge
· A guage cage with vents or a pillar mount in your mustang.
This is what i have on mine
And i can tell that the factory gauges are just for fun.
The reading s**** and they are not trustable.
Anyway what does NORMAL Mean. When you hit the red line it's too late