WSS vs ESE Coolant - Ford Powerstroke Diesel Forum
LinkBack Thread Tools Display Modes
post #1 of 1 Old 01-15-2012, 10:36 PM Thread Starter
Reg Bichel's Avatar
Join Date: Apr 2009
Location: Victor Harbor South Australia
Posts: 44
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Question WSS vs ESE Coolant

G'day Fellas,

My truck is an Aussie 2005 7.3Ltr Powerstroke.
It is essentially the US 2003 7.3Ltr. Australia wasn't a signatory to the Cal Emmission laws so continued to plant the 7.3Ltr donks into our RHD F-Trucks up until late 2005.
My truck wasn't registered until February 2006.
The International 7.3Ltr donk in mine was manufactured in 2004.

The manual which came with the truck states that the correct coolant is WSS M97B44A. It is Green and requires the FW-16 Conditioner added at intervals during the coolant's lifecycle.
However I can only find compatable Green M97B44A Coolant prefixed with ESE (ESE M97B44A).
Can anyone enlighten me as to what (if any) difference is there between M97B44A Coolant prefixed WSS as opposed to ESE ?? What do the prefixes actually mean??.
Also the last letter can be a different one, A, D etc. What do they mean?


“Political correctness is a doctrine fostered by and illogical and irrational minority, who hold forth the proposition that it, is entirely possible to pick up a turd by the clean end”

Aussie spec Brazilian built 2005 (US 2003) F-250 Superduty 4x4 7.3Ltr Powerstroke: PHP FU2 Chip,6xISSPRO Guages,AIS Intake,Zoodad, Cowl Hood, AIH Delete, DIY CCV, BTM muffler, MBRP Black Tip, RiffRaff FRx,HPx, JWVB, ARB Air Lockers Front & Rear, V10 Tranny Cooler + Stock cooler, Deep Tranny Pan, ARB Bull Bar, Edge Evo (PID & Codes only), Long Range Fuel Tank, VMS in Dash GPS Street & Off Road Nav, Toyo OPAT AT 305 70R 16”on 10” Rims, HD Suspension & Leveling Spring.GVWR 5,000Kg.
Reg Bichel is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may 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