Marks71 Posted January 28 Author Share Posted January 28 25 minutes ago, Dtret said: I never looked because I don’t use it but what water is used in the pre-mix? I screen shot this from one of Joes sources. 2 1 Quote Link to comment Share on other sites More sharing options...
jft69z Posted January 28 Share Posted January 28 1 hour ago, Dtret said: I never looked because I don’t use it but what water is used in the pre-mix? It just says 'water' on the jugs I have here (Honda, Toyota, plus a couple I looked up online). Looking at the MSDS sheets say the same. 2 1 Quote Link to comment Share on other sites More sharing options...
Marks71 Posted January 28 Author Share Posted January 28 4 hours ago, jft69z said: The subject on radiators, water, coolant is quite complex nowadays. There is plenty of info out there from chemical companies that explain the different chemical compositions and the intended uses. The vehicle manufacturers all have their specs and requirements as well. Some use glycol based, silicate based, organic acid technology, , hybrid organic technologies, etc, all with differing colors to help distinguish between them. Some are NOT recommended for the copper/brass components of old cars (just because you put an aluminum radiator in, don't forget the heater core may still be copper/brass) Below is some info from the various radiator companies. Most agree that distilled water is preferred, some sources say they're all good with aluminum, and others further stipulate that the system should be fully closed (overflow bottle, no way for air to enter), as that accelerates corrosion. Plenty of info that will show you any & everything you ever wanted to know about coolants: https://usradiator.com/does-coolant-matter https://www.dewitts.com/blogs/news/14054309-what-coolant-should-i-use-with-an-aluminum-radiator https://shop.championcooling.com/articles/What-Coolant-Color-Do-I-Use https://www.griffinrad.com/tips.php https://www.chevronlubricants.com/en_us/home/learning/from-chevron/industrial-machinery/nitrited-or-nitrite-free-coolants.html Interesting reading, but says distilled water is bad (based on his buddy, a chemist), contrary to just about every other source out there. Still good reading: https://www.onallcylinders.com/2022/01/26/ask-away-with-jeff-smith-picking-the-best-antifreeze-for-an-older-vehicle/ More in depth articles from MOTOR magazine, a trade publication for auto techs, repair shops, etc. I've been a subscriber for at least 20+ years, always top notch, fact based info: https://www.motor.com/magazinepdfs/082004_04.pdf https://www.motor.com/magazinepdfs/081999_11.pdf https://www.motor.com/magazinepdfs/082010_08.pdf Another good article: https://gearsmagazine.com/magazine/cool-it-what-you-need-to-know-about-your-vehicles-cooling-system/ A couple good reference charts: https://www.chevronlubricants.com/content/dam/external/havoline/en_us/sales-material/brochures/Havoline AFC Reference Chart.pdf https://images.oreillyauto.com/uploads/pdf/ad/SD_672 AFZ Comparison Chart-1.pdf https://www.sparkauto.com/resources/50/offers/BESFEBRUARY2017.pdf Lengthy read for sure, but well worth it. Thanks so much for the info. I never had a clue how complex and critical this subject was. I learned a ton. 1 2 Quote Link to comment Share on other sites More sharing options...
jft69z Posted January 28 Share Posted January 28 38 minutes ago, Marks71 said: Lengthy read for sure, but well worth it. Thanks so much for the info. I never had a clue how complex and critical this subject was. I learned a ton. It's crazy, for sure. Then factor in some of the 'horror' stories, when it usually came from people mixing them, or not following the suggested change intervals. I'm guilty of pushing the change intervals, but luckily have never see any damage....yet. Too many variables now, unfortunately. 3 Quote Link to comment Share on other sites More sharing options...
DragCat Posted January 28 Share Posted January 28 Always something to learn around here 🤘I never really dove into it before. When I upgraded to the Griffin rads I went with their recommendation/requirements for the warranty . 2 Quote Link to comment Share on other sites More sharing options...
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