Originally Posted by a_2000_se
So I buy another "BALL" antifreeze tester. A brand new still in the original package 'VICTOR' red bulb squeeze type with 5 colored balls, part number 00330-8. Victor is made by 'Bell Automotive Products Inc.'
It has the same temperature range for each ball as my old one. But the new one only had two 'two' balls floating for a 50/50 pre-mix of PEAK anti-freeze compared to my 10 plus year old one that 3 and a half balls floating. PEAK says their pre-mix is good to -34 degrees F. So either the testers aren't worth the $1.49 they sell for or PEAK is a little light on the glycol. I'm leaning toward 'cheap tester'.
It would be a little difficult for PEAK to be in bed with BELL in the hope to sell more antifreeze when they pre-mix their product and say it's good to -34.
-lol- enough of this topic.
I have been having the same problem and went back to the auto store to complain. There were good enough to open a 100% and a 50/50 and had the same results, the 50/50 tested -10 to-15 and the full strength tested -25. I took my mix THAT WAS MORE THAN 50%, because I kept adding anti freeze to try and get the mixture correct to my tester, to a mechanic friend of mine and He tested it with a ethylene glycol tester from snap on tools and it tested -60 degrees F. there does seem to be a big difference in the type of tester. I haven't confirmed yet what the anti freeze ( Ethylene or propylene) was that we tested with the store tester, but I will.