Originally Posted by barmcd
Not if you change the radiator fluid regularly and use either premixed antifreeze or distilled water to fill.
On my coach, it was a bit different then I suspect many of you. The 1st owner bought the coach new to go back and forth from San Diego to Fresno to attend Home Football games. It was purchased at the end of 2003, and when I bought it about 6 years ago now, it had just under 13K miles on it. Could see by the service records that it was consistent mileage, and that the same deal that sold him the coach did years maintenance, including wash and wax. That being said, the generator had less then 140 hours on it. The lack of use, and only oil and filter changes during his ownership, allowed the fluid in the generator radiator to sort of crystalize. We had the radiator removed and sent out to be cleaned by a radiator shop, and they could not save it. So, a new radiator, luckily at the same time we were going over to Final Charge on the Cummins ISL too.
So, I do not think my generator is the norm. Heck, this coach had systems that had never even been used
I like the extended life, or OAT based, type coolants. I went with Final Charge as I usually see it for sell at Truck Stops, like Flying J... NAPA also carries it in many of it's shops, or can get it for you relatively quickly if not in stock.
As with all coolants, regular testing is important. I do this, all looks good at this time.
I was just wondering how far others may have gone, before preventative drain and flush of these kinds of extend life fluids in generators.
Best to all,