I have the dieselsite also. It took about an hour to install. Make sure you have good drill bits. The location they tell you too mount it is on the frame and have to open the holes up some. Cheap drill bits will break.
If you are going to install one I suggest you drain and refill the system while installing. It is not that much longer to do. Pull the drain on the driver side of the block and the pet-cock in the radiator. This will help getting a lot of the crap out before installing the filter. I had a coolant filter on my 6.0 also. I flushed it prior to installing that one also.
I read, the main problem contaminating the coolant system is sand debris, leaching from the casted block. Thats why the Dieselsite recomends using one filter for a few weeks driving to catch all thats already there then change it out , the new one should be good for the much longer haul.
Do you guys think it's still a good idea to flush the cooling system every 60k miles if you have a filtration system or since it's constantly being filtered and having the filters changed there is no need to flush as often or at all?
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