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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: May 2015 Posts: 11,067 Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums | | Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums Joined: May 2015 Posts: 11,067 | Green coolant uses Inorganic Additive Technology for corrosion protection. There is also Organic Acid Technology and Hybrid Organic Acid Technology, a combination of IAT and OAT. I think the different colors are the manufacturer's attempt to identify the differences in corrosion protection technology. Back in the 20's and 30's antifreeze was alcohol based. [on edit] Here is a good reference on coolants.
Last edited by klhansen; 06/03/2025 2:00 AM.
Kevin 1951 Chevy 3100 work truckFollow this saga in Project JournalPhotos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together. | | |
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