I normally invoice all my work but I couldn't remember when the last time I'd changed the engine coolant.  I came across these coolant test strips for $7.99 and free shipping.  Tried them out and seam to work well telling me my coolant is over 60% antifreeze and the Ph is 7.0.  It not recommended with red or orange coolants. So spending $8 has saved me over $45 in antifreeze and distilled water and an  hour of labor.  With 50 to a bottle the average vehicle owner has a life time supply.

https://www.amazon.com/Cool-Trak-311519-Coolant-Testing-Strips/dp/B000MIUJMO/ref=sr_1_1?s=automotive&ie=UTF8&qid=1466743866&sr=1-1&keywords=coolant+test+strips

 

Can you get a photo of the spent test strip and the color chart that goes with it? I'd like to see the information it provides.

Here are the pics.  The left test strip is new, the next was put into distilled water as a base line, the third one is from the truck 24 hr. ago (the Ph has moved up to 7.5) and the last one on the right is from the Boss's car. 

 

 

 

 

Edited August 10, 20186 yr by IBMobile