There wasn't any need to check the pH of my coolant. It's carrying 0.25 volts. I will check the pH but only to satisfy my curiosity and will do it on a much nicer weather day.
The electric system itself went down to 0.06 volts.
'94 K3500 Silverado DRW long bed crew cab 4X4 with most of the options
Bought on 3/23/11. Current mileage 161,805
It came with new 6.5L TD Goodwrench crate motor dealer installed at 99k miles and 4L80-E trans rebuild at 135k miles
G80 4.10 rear, 225/75 16 tires
New Stanadyne FSD on 3½x6x1 aluminum heat sink, remote mounted above and behind the bumper.
Heath Turbo Master, Hayden SD fan clutch & trans cooler
Diamond Eye 4" exhaust, GlowShift diesel combo gauge. Analog EGT, Digital Boost & Trans Temp