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Well, full flush and change #2 is in the books. I did way too much research and then called Prestone. What I had was an ELC, but is compatible with conventional green. And flushing it should have no side effect, no goop, or gelled stuff. I bet if it went with a different ELC, I wouldn't have...

In other threads on the net I found, even one claiming to be an employee said the Cor-guard is a patented blend of I think 22 compounds or ingredients that give it the "new" protection against corrosion and cavitation. This sounds an awful lot like SCA's to me, but even seasoned guys still mix...

So I have 1 vote for #2 from simp... I will test the coolants for SCA's before I start, as the Cor-Guard stuff might actually be SCA's. I also may wait to call Prestone to see if they have a recommendation, I was leaning towards option#2 as well, but because of the semi (and I say that...

OK, seriously confused, and hope this doesn't start a war on coolant. I thought the stuff I was buying was regular green, but it is supposedly classified as an Extended Life Coolant, but is nice and green. The Napa chart I found puts it as a "Yellow". Darnit! It's GREEN. I have heard...

Found another thread that most reported back with 3 gallons in a drained block. So all is normal. Will drive a bit and report back to see if this helped with the fan at all.

Well, it was coolant change day yesterday. I got all the supplies and used Prestone flush. Six bottles of it. As Simp stated Walmart is the cheapest by far. Napa sold flush for $4.99, Walmart, $2.52. Full strength coolant $10 something. I also bought distilled water there as well. 6...

I'll be pulling the coolant out this weekend, and try to get a video. I plan on draining, flushing with a radiator flush liquid and water, driving around for 20 min, then drain and fill. Anything else while I'm in there? Thermostat check / change? I'll have everything for coolant filter...

I've seen a number of threads on the temp, but not frequency. I have a feeling mine is not cooling optimally, but could be overreacting. Coolant flush is in my future, as it hadn't been PM'd yet. 80 degrees out yesterday, no load, flat surface, not pushing if, back roads, not highway, paved...