electrolysis voltage for our trucks?

[JBakerFX4]

I put one lead of the volt meter on the Battery Neg terminal, and the other lead in the coolant. .14V DC is what I got. Tested it numerous times with 2 different meters. .14V DC with truck off and on. Is this within range?

[Jarrod B]

uh why are you doin that?

just test the pos to neg with the meter

[JBakerFX4]

b/c that's how you check for Electrolysis. One lead in the coolant, other lead on the Battery Neg. I found a TSB that says .4V is the limit.

[Jarrod B]

ok

so if you get .14v

and limit is .4

what does that mean?

[JBakerFX4]

I'm under the .4V limit. Should be A OK.