Wondering if this is a reliable product?
<Amazon.com>
Why not just use a meter?
Tester
1 Like
Hi @Tester and others following the thread.
So went to work applying those stuff.
A 2017 Prius coolant tested 0.3 V. Its the factory coolant.
Manual says “Engine coolant: Change every 100,000 miles or 10 years, whichever comes first7. Then 50k miles or 5yrs.”
Thoughts?
2009 Corolla coolant - believe previous owner changed it. It measured 0.01v or -0.01v. The pink fluid looked brownish at times. Perhaps the radiator has sign of rust?