Extended life coolant drawbacks?
We have an '03 Century that I had switched to extended life coolant, since you don't have to check it's anti-cavitaion properties for 500K mi. However, two shops, one being Detroit Diesel in Charlotte, and the other an independent certified (all engines), said that, while extended life coolant is good for not having to check it, it is bad because it is much more acidic, and is harder on cooling components, especially plastic and seals. Then, I noticed on my gallon of spare extend life coolant, that it even says NOAT on it. The OA in NOAT means organic ACID. Anyone else heard that the "lazy" factor is not worth using ELC? I switched back to "green" per shop advice.
Is this a good question?