Adding oasis transfer fluid?

[Chuggs]

ITR told me that color doesn't mean it's old. Color will change with different types of hydronic fluid added.

I have only ever used Century Heat Transfer fluid. There seems to be a lot of leeway in the guidance people have been told. I read that Newmar recommends changing when pH goes below 8.0. ITR has evidently said, 10yrs, pH below 7.0, and hardware is stainless...don't worry.
I'll see how I feel about it in another 10 years. By then I may know people who have kept the same fluid for 20 years without issue.

It was nice to have had the experience. Should I ever need to purge air from the system...I now have the rig and experience.

 

[Chuggs]

What is the procedure to flush system out?

I posted the Instructions on an earlier post. It's a pdf file.

Post in thread 'Adding oasis transfer fluid?' Adding oasis transfer fluid?

 

[Freightrain]

I must be the odd man out here, but I've never had to add fluid in the 9 years I've owned the DS.

You’re not the odd man. I’ve never added any to mine either. 2015 DS 4369

 

[J&JD]

Nor have I. The color has certainly darkened however.

 

[Rich W.]

You’re not the odd man. I’ve never added any to mine either. 2015 DS 4369

Well if it starts cycling off unexpectedly check the tank level first. It doesn’t like a low fluid condition and it’s not a sealed system so the water in the fluid does evaporate which also results in the darkening of the remaining fluid.