How to Check and Test Your Coolant/Antifreeze

How to Know When You Need to Change or Flush Your Coolant. Do you need new antifreeze or a radiator flush? Learn 4 different methods to test your coolant including doing a visual inspection, using a hydrometer to test the freezing point and boiling point, using a multimeter to check the antifreeze, and testing pH. After watching this video you will know if your coolant is still good or if you need to do a coolant flush and fill! The multimeter I used (under $20 here): =as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B001O1X65A&linkCode=as2&tag=chri0e2-20&linkId=DQXKJ44LE7TL32CR The Hydrometer I used ($3): =as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B000BOA9RY&linkCode=as2&tag=chri0e2-20&linkId=T6IACNWTAPOUC33K