Testing coolant with a multimeter

[dieselweasel]

Hi gang,

Stumbled across this by accident, has anyone ever used this method?

http://www.familyhandyman.com/automotiv ... r/view-all

I was searching for a glycol tester and found the link, my scientific knowledge of this subject isnt good enough to know if this is foolproof or just a vague indication of coolant state.

Cheers

[BillMcQuade]

This just checks for stray current, which can accelerate galvanic corrosion. You can buy cheap units to measure the specific gravity (under $30), or spend a bit more on a refractometer (under $100).

[dieselweasel]

Both our vehicles could do with a full flush over the xmas break, ive actually got one of these

back in the uk, never used it, dads already on his way over so I should have asked him to dig it out but a bit late now. Cheers Bill