The Evans Coolant thing started being talked about a few years ago for heavy diesels in semi trucks. A few folks tried it out and it didn't work out as well as it was presented. Many are just sticking with the red ELC coolant now for their commercial diesels. A heck of a lot cheaper, superb cavitation protection on liners compared to older coolants, great water pump lubrication and seal protection, no testing required, and it can go 600.000+ miles before needing changed. Only a quart or two of extender is added at the 300,000 mile mark, for about $15 a quart. And it is only about $12 for a fresh gallon of 50/50 mix of the coolant itself. It is just about the standard factory fill on all new commercial diesels.