re choice of gauges if i m going to drive on a public road then i need a speedometer and an odometer helps for navigation my chevy has a bare minimum engine temp and oil press warning lights and a fuel gauge my vw has tach water temp voltmeter and oil temp gauges if i had a turbo car i d want a vacuum manifold boost gauge an oil pressure gauge is a nice reassuring gauge to look at if my car was air cooled then i would substitute a cyl head temp gauge for the water temp gauge a few years ago i looked at the audi quattro si coupe that bobby unser used to win the pikes peak hill climb the gauge layout from left to right top to bottom was speedometer fuel tranny press temp differential water temp temp big orange tach oil press warning light oil temp boost oil press alex amiller almaden ibm com
