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post #21 of 26 (permalink) Old 01-28-2016, 12:46 PM
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Well, ok. FL22 has no 2EHA which is plasticizer and used in most of antifreezes.
Plasticizer - a substance (typically a solvent) added to a synthetic resin to produce or promote plasticity and flexibility and to reduce brittleness.
With manufacturers using silicone gaskets now, they strongly recommend to use these new antifreeze.
This is why on Mazda coolant reservoir you see FL22 printed in plastic. So, you don't put anything else and don't damage your engine.
I was watching a video on youtube - a guy replacing coolant in his Mazda3. "...I just bought these 2 Prestone coolant jags. Look how nice and light this fresh antifreeze looks. the old one is so dark..." And I think... dummy. It should be dark.

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post #22 of 26 (permalink) Old 01-28-2016, 08:02 PM
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Don't get your panties in a bunch. The reality is that it doesn't matter if you use FL-22 or not. Ford didn't use FL-22 in their vehicles that have the 2.0/2.3, they specified Motorcraft Gold antifreeze which is an HOAT coolant similar to Dexcool. Ford's current antifreeze is Motorcraft Orange which is an OAT just like Dexcool.

Also, why did you resurrect a thread that is over a year old to tell someone they used the wrong product? A little late isn't it?
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post #23 of 26 (permalink) Old 01-29-2016, 11:57 AM
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Originally Posted by madmatt2024 View Post
...why did you resurrect a thread that is over a year old....
Because I can

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post #24 of 26 (permalink) Old 11-06-2019, 11:06 AM
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According to Mazda parts counter (Dan at Ourisman Mazda in MD) any Speed3 produced *after* December 17, 2007 uses FL-22. Before that it *does *not use FL22. AllData contradicts this, and states I need FL-22.

AllData isnt incorrect but there is a caveat. As per the TSB 01-033/07, you CAN use FL-22 on older Speed3 but dont mix it with orange coolant because it will turn black.

Dan sent me this Mazda Fluids Chart updated March 16 2019 is as follows:

Pentonsin PENTOFROST A2 (GREEN) Antifreeze Specially Formulated For Asian Vehicles — CONCENTRATE- HOAT technology but does not have FL-22 according to the rep I spoke to at PENTOSIN but it does cross reference with Mazda 0000-77-501E-02.

Pentofrost A3 (BLUE) does have FL-22, according to the same guy at Pentosin but is only available in 50/50 mix but does NOT cross reference with Mazda 0000-77-501E-02 (confusing).

I had little trust in the expertise of the guy at Pentosin...he knew nothing about what FL-22 specs included, only that MAZDA had no cut off date for the need to use FL-22 or not. He was wrong about the cut off date.

Pentofrost A1 (RED) is FOR ASIAN vehicles, CONCENTRATED, HOAT technology but isnt listed for MAZDA.

An inexpensive FL-22 coolant CONCENTRATE is RAVENOL J4D2092 Coolant Antifreeze - HJC Hybrid Japanese Coolant Protect FL22 Concentrate (5 Liter. $27 on Amazon.

Last edited by Lex2007; 11-07-2019 at 11:12 AM.
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post #25 of 26 (permalink) Old 12-02-2019, 02:31 PM
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Hi, I need to top off my 2012 Mazda3. The coolant is just a little bit below MIN. Should I only use Mazda FL-22 coolant? Or is there a compatible alternative that will not cause harm to anything?
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post #26 of 26 (permalink) Old 12-03-2019, 08:30 AM
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I had to replace my radiator last year. I used the good old plane Jane green Ethylene Glycol as a replacement. It's worked fine for the last 100+ years in cars, and still works fine today.

The new stuff is just rated to last longer, and that's about the only difference. Instead of changing your coolant every 5 years (OH THE HUMANITY!), you can make it last 10 years. Big whoop.
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