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| Overly diluted Zerex from Walmart http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=56659 |
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| Author: | Squeeto [ Wed Nov 03, 2010 5:12 pm ] |
| Post subject: | Overly diluted Zerex from Walmart |
I bought 2 gallons of 100% Zerex (non pre-mix) from Walmart. Okay: -1 bottle empty -1 bottle full -mark the fluid level on the full -pour the full into the empty until the levels are the same -mark the 50% point on the bottle that already has the 100% mark Now I have a mixing bottle. I wanted accuracy because of a project I am working on (you can read about it in another thread in this forum). -fill the mixing bottle with distilled water (also from Walmart) Now do I have a 50/50 mix? Not according to my freeze point coolant tester. I got -32*C. Can't be right. Off to Canadian Tire - mechanic did the litmus test and said he gets about -32*C. Now either Zerex is shipping slightly weak concentrations of coolant or someone is pissing in the water. |
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| Author: | dkenny [ Wed Nov 03, 2010 6:24 pm ] |
| Post subject: | Re: Overly diluted Zerex from Walmart |
are you sure you complete emptied the old coolant? why..if some remained it would dilute the new..hence the lower than expected freeze point.. just a thought. -dkenny |
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| Author: | CATCRD [ Wed Nov 03, 2010 6:24 pm ] |
| Post subject: | Re: Overly diluted Zerex from Walmart |
If you're using one of those coolant testers with the floating needle, they are very sensitive to the temperature of the coolant. I did the same 50/50 test with new coolant to calibrate the tester and it read about -44F freeze point at room temp IIRC. |
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| Author: | dkenny [ Wed Nov 03, 2010 6:40 pm ] |
| Post subject: | Re: Overly diluted Zerex from Walmart |
also where are you located?? -32C where I live..ah..it'll NEVER HAPPEN!!..The coldest in my 32yrs here is around 5F... since -40F and -40C are the same your talking warmer..maybe -20F..darn cold for sure.. but what do you expect to see for the lowest temp?? -40C...or less??? I hope you plug in at night or park in warm garage..  -dkenny |
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| Author: | cerich [ Wed Nov 03, 2010 7:45 pm ] |
| Post subject: | Re: Overly diluted Zerex from Walmart |
he headsed to Canadian Tire...it gets cold enough |
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| Author: | Squeeto [ Wed Nov 03, 2010 10:16 pm ] |
| Post subject: | Re: Overly diluted Zerex from Walmart |
The over-all mix (what is now in the truck) is better so I think just one jug was off. I could check the lot numbers tomorrow. It doesn't get too cold here; I am in a rare part of Canada that gets freezing temperatures for one week around Christmas. Sometimes not. I mostly wanted the mix so that the proper amount of rust/oxidization protectant was used. I have left over straight Zerex so it is easy to fix. CATCRD, the local mechanic did check the mix with a test strip getting the same result as my tester. |
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