Just saw this in my recent Handyman mag...
Check your coolant conductivity with a multimeter.
1. Start with cold engine
2. remove radiator cap
3. start motor
4. Set voltmeter to 'DC' (20 volts or less)
5. after reaching operating temp, insert positive (+) probe into coolant.
6. Rev engine to approx 2k and place probe onto negative (-) side of battery.
7. If the meter reads less than .4 volts your coolant is good.
8. readings above .4 volts the electrolisis additives are exhausted.
Anyone tries it please reply
Check your coolant conductivity with a multimeter.
1. Start with cold engine
2. remove radiator cap
3. start motor
4. Set voltmeter to 'DC' (20 volts or less)
5. after reaching operating temp, insert positive (+) probe into coolant.
6. Rev engine to approx 2k and place probe onto negative (-) side of battery.
7. If the meter reads less than .4 volts your coolant is good.
8. readings above .4 volts the electrolisis additives are exhausted.
Anyone tries it please reply