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): http://www.amazon.com/gp/product/B001O1X65A/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B001O1X65A&linkCode=as2&tag=chri0e2-20&linkId=DQXKJ44LE7TL32CR The Hydrometer I used ($3): http://www.amazon.com/gp/product/B000BOA9RY/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B000BOA9RY&linkCode=as2&tag=chri0e2-20&linkId=T6IACNWTAPOUC33K How to Flush your Heater Core: https://www.youtube.com/watch?v=LD2LGkUycQg How to Fix a Car with No Heat: https://www.youtube.com/watch?v=-XjXTVJhFLM How to Flush and Change Your Coolant: https://www.youtube.com/watch?v=L5pNZ4JHsoY *If the video was helpful, remember to give it a "thumbs up" and consider subscribing. New videos every Thursday* -Website: https://www.ChrisFixed.com/ -Facebook: https://www.facebook.com/chrisfix8 -Twitter: https://twitter.com/ChrisFixed -Instagram: https://instagram.com/chrisfixit -Subscribe Here: null -YouTube Channel: null Disclaimer: Due to factors beyond the control of ChrisFix, I cannot guarantee against improper use or unauthorized modifications of this information. ChrisFix assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. ChrisFix recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of ChrisFix, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not ChrisFix.