Great quality and price for this coolant! I own a 2011 Jeep Grand Cherokee with 147k miles! This coolant performs very well during harsh driving conditions. Specially off-road, with heavy engine loads at low speed.
This product gets good reviews so I thought I'd try it. It has been a few years since I did an antifreeze change in my truck and I simply forgot that I needed full strength antifreeze and not this. The V-6 engine called for almost 3 gallons so I ordered and got three. Where my memory failed me, was that you can typically drain the radiator from a petcock and drain HALF the antifreeze. After flushing with water (heat engine, drain repeat) you have very dilute antifreeze trapped in the engine block, in my case roughly 12%. If you top off the radiator with 50/50, your antifreeze is nowhere near the 50% solution recommended. There are supposedly drain plugs for the engine, but not part of the "handyman's" normal antifreeze change. Perhaps if you want to pay a pro to do this, the 50/50 would be the chosen product. In my case, I needed a gallon of full strength antifreeze since what was trapped in the engine had been diluted by flushing with water. I have not yet checked the solution with a hydrometer, but my understanding proportional math tells me I'm very close to a 50% solution at the end of my effort.