adallak Posted November 4, 2005 Report Share Posted November 4, 2005 I have recently purchased at Wal-Mart and later tested an antifreeze concentration tester made by Prestone. The good thing about this tester (besides the price) is that you can calibrate it yourself by testing small volumes of coolant of known concentrations. I have made 50/50, 45/55 and 55/45. The tester shows (by means of the floating submerged plastic arrow) freezing temps in F and C, as well as boiling points for 15psi radiator cap. The saddest thing in life is wasted talent Link to comment Share on other sites More sharing options...
adallak Posted November 4, 2005 Author Report Share Posted November 4, 2005 and the second view: The saddest thing in life is wasted talent Link to comment Share on other sites More sharing options...
Spurlee Posted November 7, 2005 Report Share Posted November 7, 2005 I've used the same one for years - be careful though, you need to fill it all the way to the top with fluid or it will give low readings. Your picture shows the proper way to fill and read the thing. Scott 1996 El Dorado 2006 STS 2000 Corvette Link to comment Share on other sites More sharing options...
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