Originally Posted By: sayjac
I'm using Peak LL because I'm not worried about whether it has 2eha or not. It's been said on this board many times that if you service your system regularly that is most important thing. Nissan calls for coolant service every 2year/30k anyway. I've used all makes in 2 vehicles for ~5years with no issues.
Never heard of "universal oil", poor analogy. As for Zerex Asian, it only comes in 50/50, and I've not seen it anywhere. And, I don't buy any coolant that's not full strength. I always do a distilled flush series, without finding block drains, very difficult to get a 50% coolant concentration in system using 50/50.
Around me, all makes coolants are the majority of the market, easiest to find, least expensive to buy.
Chill pill?
As you can never drain block entirely, all cars using a 50/50 concentrate are running on far less than a 50% concentration of coolant.