OAT or NOAT Coolant?

[tmw188]

Good product page. I choose the Compleat OAT it was readily available at a local Peterbilt dealer in the 50/50 formulation. $16.67 gal 

[rustykramermetalfab]

Has anyone found an online/youtube video of the detail of how to properly flush a coach coolant system in a coach?  I have read a lot but just not sure I fully understand how it is being done.  I am to dumb to understand what I read, I need to see it.

[tmw188]

You might check this video out. He has a lot of good videos mostly on Cat engines but has many that is just diesel specific in understanding a lot of things. 

 

[jacwjames]

When I was thinking about doing a coolant change back in 2015 I did't have a good place to do it (slopped driveway) and the thought of handling ~50 gallons of a mix of old coolant and flush didn't appeal to me.  I did get a quote from Cummins $650, but the shop manager suggested I get an analysis done, which I did and it turned out great, no need for a change.

 

But ~3 months later road debris took out my radiator and I ended up getting it replaced under insurance claim. 

[birdshill123]

I have used final change in all my motorhomes. Meets every mfrs. requirements. Available in most truck stops and even some Walmarts. Napa as well. O use an inexpensive refractometer  from Amazon to  test. I drained the old coolant into a bucket and poured into old gallon oil jugs. To refill I drop a 120 volt utility pump into a 5 gallon pail. Pour in coolant. Utility pumps have a garden hose outlet. No pouring into the  rad resevoir required.

[TLMonaco]

So what is the procedure to purge the air from the cooling system?

Thanks

Tom

[rustykramermetalfab]

1 hour ago, TLMonaco said:

So what is the procedure to purge the air from the cooling system?

Thanks

Tom

If you watch the video the tech uses a system called Airlift. Slick deal. If you do your own coolant change out its paid for. I just ordered one from Ebay for $110.00  

[Yoaks5]

12 hours ago, TLMonaco said:

So what is the procedure to purge the air from the cooling system?

Thanks

Tom

All systems are different but my overflow tank is the highest point in my system and I've changed mine 3 times now with no air trapped. I also used peak final charge.