Inhibitor 50% - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
General Tech Have a question that is not covered by one of the other categories? This is the forum for all other items not specifically covered in other categories.

LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 03-13-03, 09:20 PM Thread Starter
Registered User
Join Date: Feb 2003
Location: Perth
Posts: 105
Inhibitor 50%

Does anyone know why on the I6 the min. concentration of inhibitor is 5% and the V8's are 50%?

Both cooling systems have capacity of 15L.

NC Fairlane 5Ltr Twin Stainless Steel 2.5", Air Induction
NCGhia is offline  
Sponsored Links
post #2 of 2 (permalink) Old 03-13-03, 11:43 PM
Registered User
Join Date: Sep 2002
Location: 27 00S 153 07E
Posts: 1,944
There is 2 different things here: corrosion inhibitor R1-3B and antifreeze R1-32/33.

The factory fill for the 6 (ef/el anyway) was 5% R1-3B (inhibitor)and the V8 got 50% R1-32/33 (anti-freeze).

The anti-corrosion supplement (inhibitor), at 5% for the 6, I think is for the alloy head, as the V8's have an iron head.

For the anti-freeze, Ford say good for 3 years @33% and good for 4 years @ 50%.

Put is this way, if you live where there is no frost( and your cooling system is perfect) and have a 6, you can use 5% R1-3B inhibitor.

No matter where you live, if you got a V8, you should use 50% water/antifreeze, this is not for freeze protection, it is for anti-boil protection.

"I married Miss Right. I just didn't know her first name was Always."
TopGhia is offline  
Sponsored Links

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > General Tech

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome