Hi! I bought a water temp, volts, and oil pressure gauge for under the dash. I think the water and volts are straight forward, but two questions for the oil gauge:
1. Where to I connect the little nylon hose and fitting.... there's what looks like an electric sending unit I think on the oil filter housing. Is that the place?
2. Do I need to drain the oil first?
Thx in advance!
'68 400HO Coupe, 4 spd, 259 interior, Windward Blue. My other car's a Johnson 15 outboard on a '61 Starcraft rowboat... Just sayin'.