Electrical is easiest because you just run a wire into the passenger compartment.
With a mechanical gauge, you have to bring an oil line into your car.
I had a mechanical oil pressure gauge 20 years ago on my 66 Nova that required you to check the gas and fill the oil at every fillup. It never leaked, but always worried me.
TB
Tony Boner
Personal: 98cdw27@charter.net Work: tony.boner@sun.com
Saving the computer world from WinBloze as Unix/Solaris/Java Guru
http://www.sun.com 1998 Contour SVT Pre-E1 618/6535 Born On Date: 4/30/1997
Now with Aussie Bar induced mild oversteer.