B.07 - Coolant Additive
The coolant additive is very important for maintaining the
life of your engine. If you've heard stories of earlier Ford
diesels failing, this missing additive was probably the
culprit. See the Coolant links on my Tips web page for more
information about why this additive is important. The additive
is called DCA4 or FW15, depending on who you talk to.
Fleetguard is the original manufacturer of the additive and is
the recommended brand. You can also pick some up at your Ford
dealer. Other brands may be available, but no one has told me
for sure.