Thanks for the info. I faintly recall Recochem selling the “OEM” brand of coolants and brake fluids.
Not all brake fluids are the same. GM recently stated in a TSB that their Delco Supreme II fluid contains improved lubrication properties to solve a pedal squeak issue.
Similarly, Honda and Toyota had a recall about 10 years ago due to a supplier using material for the master cyl seal that would respond poorly if brake fluid with inadequate lubricants (aftermarket) was used.
https://static.nhtsa.gov/odi/tsbs/2014/MC-10112028-9999.pdf
Based on those two examples I am inclined to believe that the OE fluids may contain other additives that aftermarket fluids may/may not.
I paid $8.94/qt from the dealer.