Correct Coolant??

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Jun 21, 2021 | 07:57 PM

#16

Matt Pace

Mountain Pass

Joined: Apr 2021

Posts: 234

Likes: 28

Quote:

Originally Posted by 07 F250 Aggie Mobile

What is the best method to flush? Is there a bottom drain on both systems?

I think there are 2 drains. One looks easy but the other is a pain to get to. Someone else will have much better info that I hope to learn as I need to take this on soon

Jun 21, 2021 | 08:16 PM

#17

07 F250 Aggie Mobile

Thread Starter

Senior User

Joined: Apr 2007

Posts: 147

Likes: 1

From: Porter, TX

So the consensus I am hearing is that my secondary is correct, but I screwed up putting orange in my primary??

My plan now is to drain orange, flush with water and then drain again, then fill with yellow/water mix.

Sorry for sounding repetitive, just want to get this thing back to normal.

THANKS

Jun 21, 2021 | 08:50 PM

#18

Matt Pace

Mountain Pass

Joined: Apr 2021

Posts: 234

Likes: 28

Quote:

Originally Posted by 07 F250 Aggie Mobile

Orange is fine as long as it's not old. That's what I've gathered. Once it gets old, it's got to go

Jun 21, 2021 | 09:23 PM

#19

BillyE

Fleet Mechanic

Joined: Feb 2018

Posts: 1,592

Likes: 204

Quote:

Originally Posted by 07 F250 Aggie Mobile;[url=tel:19937891

19937891[/url]]What is the best method to flush? Is there a bottom drain on both systems?

If I remember correctly, it took something like 4 cycles of distilled water, draining in between, to get all my orange out. Then drain all, add back x gallons concentrate such that x=1/2 capacity, then top off with distilled. Multiple drains on primary. I used petcock on radiator and oil cooler hose to drain. Secondary I think I just did the one petcock.

I hope I’ve explained myself. It took a little effort but I wanted the orange gone.

Jun 21, 2021 | 11:15 PM

#20

Ltngdrvr

Lead Driver

Joined: Nov 2005

Posts: 8,470

Likes: 4,963

Or...
You can find a shop with an exchange machine...

Jun 22, 2021 | 05:05 AM

#21

nomad_archer

Mountain Pass

Joined: Oct 2018

Posts: 199

Likes: 5

Its up to you but ford says your can mix orange/yellow if you need to top off. I recently topped off with my orange with yellow. So far so good.

https://www.fcsdchemicalsandlubrican...patability.pdf

Jun 22, 2021 | 01:14 PM

#22

landman873

Senior User

Joined: Sep 2018

Posts: 122

Likes: 2

Quote:

Originally Posted by nomad_archer

Its up to you but ford says your can mix orange/yellow if you need to top off. I recently topped off with my orange with yellow. So far so good.

https://www.fcsdchemicalsandlubrican...patability.pdf

That's good to know i need about a half gallon to top up from the Tee leaking and didn't want to change it all to yellow for just a half gallon.