Is Modern Antifreeze OK to Use in Vintage Jeeps? |
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Ron D
Member Joined: 27 Oct. 2019 Location: South Carolina Status: Offline Points: 1403 |
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Posted: 31 May 2023 at 4:33pm |
Not sure if this is true or not, but news to me. Something to consider: |
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1951 M38
1951 M100 |
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jhg
Member Joined: 07 Nov. 2016 Location: colorado Status: Offline Points: 917 |
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Thanks. Easy enough to at least not use extended life type.
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1948 cj2a. Rebuilt L-head, steering, T90, WO 636, steering, brake lines. So far.
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Oldpappy
Member Joined: 09 Apr. 2018 Location: Tennessee Status: Offline Points: 4815 |
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You are overthinking it, as long as it keeps things from freezing it is okay to use. They didn't even have store bought antifreeze in the early days of automobiles, and folks used alcohol and other things or drained the coolant when it turned cold enough to worry. That is why there is a petcock in a handy location on the block and another on the radiator.
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If you can't get there in a Jeep you don't need to be there!
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Joe Friday
Moderator Group Sponsor Member x 2 Joined: 26 Dec. 2010 Location: Jeep Central Status: Offline Points: 3633 |
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Stay with green.
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Mark W.
Member Sponsor Member Joined: 09 Nov. 2014 Location: Silverton, OR Status: Offline Points: 7923 |
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im using NAPA safe for all cooling systems coolant at a 50/50 mixture with grocery store distilled water. I have Copper, Brass, Aluminum, Iron, Silicone, & various gasket materials in my system. In 20 years I'll tell you how its doing.
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Chug A Lug
1948 2A Body Customized 1949 3A W/S 1957 CJ5 Frame Modified Late 50's 134L 9.25"clutch T90A D18 (1.25") D44/30 flanged E-Locker D25 5.38 Since 1962 |
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dasvis
Member Sponsor Member Joined: 07 Sep. 2019 Location: Salem, Oregon Status: Offline Points: 1518 |
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Just use plain old green ethylene glycol coolant & you will be fine. Either pre-mixed, or concentrated & mix 50/50 with distilled water.
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1947 CJ2A #88659 "Rat Patrol"
1953 CJ3A #453-GB1 11266 "Black Beauty" 1964 Thunderbird convertible ..... & one of them moves under it's own power!! |
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duffer
Member Joined: 02 Feb. 2012 Location: Bozeman, MT Status: Offline Points: 1076 |
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Personally, I think this is pure BS. Attacks gaskets? As if head gaskets haven't changed in nearly 3/4's of a century? Thermostat gasket? I don't think that will in any way care if the antifreeze is green, purple or orange or any other color. Same with the water pump seal. Most of my 3B coolant system is now aluminum with only the heater cores being copper. I've been using Dexcool in it for 15 years with nary a problem.
I think you will have more problems using old formulations in anything with aluminum components, be it radiator, heads, or anything else.
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1955 3B: 441sbc,AGE 4 speed transmission, Teralow D18w/Warn OD, 4.11:1 D44's/ARB's, glass tub & fenders, aluminum hood/grill, 8274, York OBA, Premier Power Welder; 67 CJ5: 225,T86AA, D18, 4.88's, OD
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JonJ
Member Joined: 18 Apr. 2020 Location: Essex, UK Status: Offline Points: 316 |
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I agree
I have used this for 3 years and no problems so far |
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Tom in RI
Member Joined: 07 May 2009 Location: RI Status: Offline Points: 1124 |
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Running pure water is a contributor to the cracked block threads. No ptoblems here with regular green prestone.
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JonJ
Member Joined: 18 Apr. 2020 Location: Essex, UK Status: Offline Points: 316 |
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So I presume the all makes, all models, ready to use modern formula (in the yellow bottle) from Prestone is ok then?
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Tom in RI
Member Joined: 07 May 2009 Location: RI Status: Offline Points: 1124 |
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This has been ok for many years. Dilute with distilled water
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muley
Member Joined: 25 Jan. 2021 Location: idaho Status: Offline Points: 816 |
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affordable too!
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Joined Jan-8 2015
I never met a mule I didn't like! OD Mule 01-52 M38 Big Red 19fiddy CJ3A salad |
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