Testing Antifreeze


Old 12-20-04, 12:01 PM
Thread Starter
Join Date: Nov 2004
Location: fayetteville nc
Posts: 111
Testing Antifreeze

I bought one of those anti-freeze testers that has a squeeze bulb which sucks up the anti-freeze from the radiator into the plastic calibrated tester for checking. Is it better to take the anti-freeze (coolant?) from the radiator itself, or from the radiator overflow container. Some mechanics say to take it directly from a warm radiator because you get a better coolant mixture and thus a more accurate reading. Some of them say it doesn't make any difference. Thanks.
Sponsored Links
Old 12-20-04, 12:41 PM
pt_fixer's Avatar
Join Date: Apr 2004
Location: NJ
Posts: 106
Directly from the radiator is best.
I was curious about this myself a few weeks ago, so I started checking both the reservoir and the radiator on each vehicle I worked on. I found quite a few vehicles that had good protection levels in the radiator and bad levels in the reservoir. So just testing the reservoir is not reliable.
Old 12-20-04, 04:19 PM
Desi501's Avatar
Join Date: Oct 2003
Location: Boynton Beach Florida
Posts: 2,207
You have no way of knowing if someone has topped off the resovoir recently diluting the contents. What's in the radiator is what really matters.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes