jos51700 said They can't talk about stratification if they're not mixing them, and they specifically state that DOT 5 is exempted from non-stratification requirements Click to expand...
jos51700 said Re-read it. It's saying, if you mix 3 or 4 or 5.1, they can't stratify. DOT 5 is exempted from this requirement. Put another way, 5 can be in the same system, and it can 'layer out', whereas the others have to be miscible. Click to expand...