I was also confused because ran into the same problem of the decimal point and i was lost. Its great that you went to the source and enlighten those of us who were confused great video everything crystal clear. 👍
Hi there - I was so confused by people using different scales and different '. something' range. However your video is very clear. I believe that when people talks about 0.03 is because they use the 2000ma scale vs the 20 one on their multimeter. However you made it crystal clear, on 20ma scale, reading should be under 0.3. Thanks a ton!
It's NOT milliamps, it's millivolts you're testing for. That is one OLD meter. I used to have one exactly like it that was labeled IBM. They gave away the old meters to techs when they upgraded. That meter is circa the early 1980's. I believe it's an early Fluke. The number should be UNDER 300mv (technically 333mv if you want to be precise) which is one third of a volt if math isn't your strong suit.
@@1947froggy Thank you for the reply. The vehicle is a 2006 Jeep Grand Cherokee Laredo. I just changed the coolant last year with coolant from Mopar. it is a 5 year embittered coolant 60/40 mixture. 130,000 miles on the vehicle. About 9,000 miles since the coolant change. I was just concerned about the readings on the multi-meter, and the - or + readings meaning anything. I know if it is 0.30 you need to change it. I just wasn't sure if the negative/minus sign in front of the number meant anything.
@@jonathandaniels2183 Meter should be reading in the + (or lack of a -) range. Meters don't always show a + sign. If I said plus/minus somewhere I just mean over/under a little.
@@1947froggy Oh no, I saved your video and go back to it for reference, so many years later this is still the best video for reading a multi-meter for Electrolysis in coolant. Thank you for your help, I really appreciate it.
Rispectable Sir As i saw many videos average decision below from .3 is good equal or higher than .3 is not good But De-ionized water mix solution is matters Very good effort Thank you
@@1947froggy so why do other say red goes in the coolant black ground. When i do it your way it comes out good but.when i put the red probe in the coolant it comes out bad. Im confused.everywhere on line it says pou the.red in the coolant.
Every mech I talked to said they never herd of this and not to base anything off of it. There is no science to back this up . Im going to use test strips to see if this can be confirmed.
Using your test I got .35Volts on my Saturn Testing for ohms 1Mohms Brand new coolant tested at 15Mohms Ohms Law being Current = Voltage / Resistance it would make sense that as voltage increases or resistance decreases current would increase
cooling system electrolisys,audio static,alternator starter motor static true do damage to the engine but not to economy of a car it increases it! That is what waste spark comes in handy with plazma ignition even bether in a closed system engine! Definatly not good have it as a cooling system and peopel if mix wrong engine oil you get havoc head gasket blown interupts ore destroys senzors oil leaks even rust staff. Nice video plain and simpel.
You are measuring electrolysis action which corrodes/erodes. Decimal point critical 0.3V (300mV) max is fair benchmark but introduction of brass meter probes bothers me a little bit. {Reverse them to see!}. Certain dissimilar metals and an electrolyte are voltaic cell. Output depends on PH level. Inert is zero. Water purity in new mixes also critical. (Distilled). Take SG for freezing point - this is also engine coolant & antifreeze which also raises boiling point. Lots to do then! Go aircooled!
I was also confused because ran into the same problem of the decimal point and i was lost. Its great that you went to the source and enlighten those of us who were confused great video everything crystal clear. 👍
Great video!
No nonsense electrolysis testing.
Hi there - I was so confused by people using different scales and different '. something' range. However your video is very clear. I believe that when people talks about 0.03 is because they use the 2000ma scale vs the 20 one on their multimeter. However you made it crystal clear, on 20ma scale, reading should be under 0.3. Thanks a ton!
Right, the scale is key. :)
It's NOT milliamps, it's millivolts you're testing for. That is one OLD meter. I used to have one exactly like it that was labeled IBM. They gave away the old meters to techs when they upgraded. That meter is circa the early 1980's. I believe it's an early Fluke. The number should be UNDER 300mv (technically 333mv if you want to be precise) which is one third of a volt if math isn't your strong suit.
Great video, I have a question, what if the multi-meter on the screen shows -0.25. Is that a good reading for coolant?
I think ok, how long since coolant change? Miles/years?
@@1947froggy Thank you for the reply. The vehicle is a 2006 Jeep Grand Cherokee Laredo. I just changed the coolant last year with coolant from Mopar. it is a 5 year embittered coolant 60/40 mixture. 130,000 miles on the vehicle. About 9,000 miles since the coolant change. I was just concerned about the readings on the multi-meter, and the - or + readings meaning anything. I know if it is 0.30 you need to change it. I just wasn't sure if the negative/minus sign in front of the number meant anything.
@@jonathandaniels2183 Meter should be reading in the + (or lack of a -) range. Meters don't always show a + sign. If I said plus/minus somewhere I just mean over/under a little.
@@1947froggy Oh no, I saved your video and go back to it for reference, so many years later this is still the best video for reading a multi-meter for Electrolysis in coolant. Thank you for your help, I really appreciate it.
That's ok keep an eye on it.
You are correct ! .30 is the correct voltage!
Thanks for confirming.
:)
Rispectable Sir
As i saw many videos average decision below from .3 is good equal or higher than .3 is not good
But
De-ionized water mix solution is matters
Very good effort
Thank you
Thanks!
Nice one
I got a slip with my new radiator. It says readings of 0.1. It's on a 06 dodge ram.
I have two different voltmeters one gives me 11v the other one gives me 15v not sure which one I should trust
Get 1 more cheap one and then toss the odd reading.
:)
A very helpful video thank you
mine shows 12.6 v the same as the battery voltage . what is that mean ?
You are trolling, or did it wrong.
Isn't the red positive
no matter for this test, think like a continuity test.
@@1947froggy so why do other say red goes in the coolant black ground. When i do it your way it comes out good but.when i put the red probe in the coolant it comes out bad. Im confused.everywhere on line it says pou the.red in the coolant.
@@swreames1 No sure, wish I had more detail.
Every mech I talked to said they never herd of this and not to base anything off of it. There is no science to back this up . Im going to use test strips to see if this can be confirmed.
@@swreames1 ua-cam.com/users/shortsNfgV5nZkhFA?si=EHTtMsCKU6PyG41M Find more knowledgeable mechanics. :)
Hey mate do you have to dilute the coolent or can you just run streight coolant
+nathan schmidt You would never run straight coolant out of the bottle unless it is marked on the bottle that it already has water added.
:)
Would it not be simpler to get an ohm reading of the coolant
From what I have learned it is not a good indicator.
Using your test I got .35Volts on my Saturn
Testing for ohms 1Mohms
Brand new coolant tested at 15Mohms
Ohms Law being
Current = Voltage / Resistance
it would make sense that as voltage increases or resistance decreases current would increase
So how would you fix this? Would changing the coolant fix this?
Yes exactly!
:)
Thank you for the reply! it turned out my heater core was just clogged, no small holes so I no longer need to worry
cooling system electrolisys,audio static,alternator starter motor static true do damage to the engine but not to economy of a car it increases it!
That is what waste spark comes in handy with plazma ignition even bether in a closed system engine!
Definatly not good have it as a cooling system and peopel if mix wrong engine oil you get havoc head gasket blown interupts ore destroys senzors oil leaks even rust staff.
Nice video plain and simpel.
You are measuring electrolysis action which corrodes/erodes. Decimal point critical 0.3V (300mV) max is fair benchmark but introduction of brass meter probes bothers me a little bit. {Reverse them to see!}. Certain dissimilar metals and an electrolyte are voltaic cell. Output depends on PH level. Inert is zero. Water purity in new mixes also critical. (Distilled). Take SG for freezing point - this is also engine coolant & antifreeze which also raises boiling point. Lots to do then! Go aircooled!
Beresfordjohn Greene Thanks for the comments, I did have a Beetle once 1973 that was air cooled & many motorcycles.
:)
Mine shows 12 volts.
LOL. My battery shows the same reading. Time for new battery?