11/13/2023 0 Comments Gm dexcool 50 50The fact that Prestone was pretty mum regarding the relationship between their yellow coolant and Dex-Cool tells me all I need to know (personally). I just got some Prestone GM Dex-Cool approved coolant for my Chebby. Dexcool is ethylene glycol based, but some of the rest of the chemistry is different. It is red and ethylene glycol, but made for trucks extended service. They are designed for the purpose and apparently pass the GM6277M specification. I think the Toyota Red coolant is similar to this 50/50 premixed rotella ELC coolant I use in my honda. The aftermarket tries to save money and lure prospective buyers with a "one size fits all" type of part, or application.īoth the Havoline and Prestone Dex-Cool coolants should be 100% good to go. OE specs are often very particular and very specialized in terms of application and use. its gasoline engines.Īll this follows what we know to be true about the relationship between OE and aftermarket. In addition, Ford uses (or used to use) different coolants in its Powerstroke engines vs. ![]() These products meet GM DEX-COOL requirements. Ford and Honda use something similar to Chrysler I believe, but it's not the same. Havoline Extended Life Anti-Freeze/Coolants DEXCOOL are based on a patented aliphatic organic additive formulation that provides a service life of 150,000 miles/5 years and is approved under GM6277M. Chrysler uses a HOAT, or Hybrid Organic Acid Technology, coolant. GM's Dex-Cool is a full-on OAT, or Organic Acid Technology, coolant. Again, different coolants from different manufacturers are very different. If GM6277M is the GM Dex-Cool spec, and the Prestone yellow Extended Life doesn't list it, and their tech support won't confirm it, I think we do know for sure. Genuine: Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts SKU: 12378390 Other Names: Coolant, 594 Description: Dex-Cool 50/50. Also a BIG reason to avoid water flushes of any kind in a Northstar.throws your final mixture percentages off. Too little coolant, it goes corrosive, too much does the same thing. I also remember that the Guru stated that it was CRITICAL to maintain EXACTLY 50/50 mixtures of coolant and water when using this corrosion inhibitor package in aluminum block engines. The price is now equivelent to buying the 100% stuff and a gallon of distilled water and mixing your own.without the hassle. ![]() I am now in full support of using the premixed 50/50 stuff. Just glancing at the ingredients, it appears to have the same corrosion protection chemicals that the guru wrote about a few years ago. It states clearly on the label that it meets GM Dexcool requirements and specifications. I chose to use the 50/50 premix, and it took me exactly 2 gallons to do the job. This mixture is orange, just like the factory stuff I removed a few years back, and just like the Texaco product that I put in at that time. That in itself is enough answer for me personally. Given that they still sell both (Prestone still does), I'd assume not. I would ask Prestone if they've validated that coolant to the GM Dex-Cool spec.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |