Correct Coolant

[Rickkyyr8]

Just changed my overflow tank and noticed it was low with coolant. Anybody know what ford uses/recommends? It’s green/yellowish for what it’s worth, thank you

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[Frank302]

Yours probably came stock with Yellow.

 

[Rickkyyr8]

Yours probably came stock with Yellow.

so weird, in my owners manual it says to use orange but it’s definitely not orange

 

[Frank302]

Free upgrade I guess, haha. Are you the original owner? It's possible someone did a flush for the new stuff. I did that with my '18 GT. I looked around online and I actually couldn't find any examples of 350's coming with the yellow stock. Even the 2020's . 27 seconds into this video you can see the resivour:

 

[Cobra Jet]

Just changed my overflow tank and noticed it was low with coolant. Anybody know what ford uses/recommends? It’s green/yellowish for what it’s worth, thank you

Here ya go, I had posted the charts a while back. First post in this thread has the original Ford Coolant charts and the most updated charts are on Page 2.
https://www.mustang6g.com/forums/threads/ford-motorcraft-coolant-spec-info.139849/

It can be confusing because for whatever reasons unknown to us, Ford changed coolant types I think 2x during the S550 production cycle…

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