Engine Coolant

[meandmyprs]

Should I have the red or green in my 2004 CC? It has the green in it but I am going to have the cooling system flushed, etc. this week and was curious if I should put the green back in or go with the red??

Thanks in Advance

Brent

[garyde]

Hi Brent. Check this out.
http://www.detroitdiesel.com/Public/...res/7SE298.pdf

[meandmyprs]

Gary, perfect, thank you.

Brent

[Ray Davis]

I know that DD recommends their Power Cool product (the red stuff), however I've found that the Prevost shops seem to all use the green stuff intead. I've been told to never mix the two.

It would be nice to get a real final answer on this. IF DD recommends red, why does Prevost seem to use green. At least in both Mira Loma and Dallas, in both of my coaches green was used.

Ray

[Jon Wehrenberg]

I don't know about the mixing, or if the colors mean anything, and I have not seen any admonitions about mixing different types in the Detroit Diesel PDF file on coolants.

What is stressed by Detroit is the chemical characteristics of the coolant.

http://www.detroitdiesel.com/Public/...res/7SE298.pdf

That is the file and I won't try to repeat all that it contains, but it is a comprehensive guide to what is acceptable in our engines. I know there are coolants that meet the Detroit spec that are undoubtedly cheaper than what I pay for the Detroit Diesel brand coolant. In the context of the cost of an engine or serious repairs or replacement of a radiator I will stick with what Detroit recommends and adhere religiously to the maintenance schedule.

[Ray Davis]

I was told by the service manager at Prevost Mira Loma (and a mechanic as well), that red and green should not be mixed. And that when switching, you need to completely drain the system.

I'll try to get ahold of my DD buddy to see if I can get a better ruling on that.

I had gone out and purchased a bunch of the red stuff from DD, only to not use it, at the suggestion of Prevost.

Ray