Coolant Conditioner all that necessary?

[FireTruck]

Exactly what does it do? Other than the dealership where can I locate the FW16 conditioner required for the coolant every 20K miles? Any substitute considerations?

THanks.

[Bob Bostrom]

Fire Truck
The SCA (suplimental collant additive) coats the coolant passage ways with a a sacrificial layer protecting the block from errosion. Order it and the test strips from DIS diesel injector service "http://www.dieselpage.com/main.shtml" They have better prices than the dealer and it comes right to your door. They are a good source for fuel, oil and filters too.

[FireTruck]

Thanks for the reply. I'll do that!!

[Raven222]

The bottom part of the piston (piston sleeve) comes in close proximity to the cylinder wall upon fuel air detonation which makes the unique diesel engine sound. This "slapping" causes an energy wave to pass through the cylinder wall into the coolant passageway. Without the additive, cavitation can occur, which in effect causes tiny air buubles to explode off the coolant passageway walls. The bubbles carry away small pieces of metal with them. The end result is the same as when the propeller on a ski boat loses its' bite and spins in the water. Presto, holes in the metal. Over a period of time cavitation holes can occur through the cylinder wall thus introducing coolant into the cylinders Use the additive (which stops this from occuring).

2001 Excursion Limited 4x4 bone stock so far. Love it!! Will upgrade to v code springs and Bilsteins when tax return comes in!!