Antifreeze PEAK or OEM Mazda

i use peak 50/50 Red stuff formulated for toyota lexus and scion

Not an LS specifically but I had good luck with the PEAK 50/50 pre-diluted mix from Autozone.

I used peak when I changed my rad, no issues so far

I use Peak for Asian vehicles, green in color, for my Mazda's. Get it at most auto parts stores in 50/50 mix so you never worry about cold temps in winter.

Peak final charge is compatible and meets all necessary specs. Bonus is it's available almost everywhere in the US and Canada

I recently changed the coolant in my 2020 CX-5 with genuine Mazda prediluted FL22. The reason I change the coolant is corrosion protection. The corrosion inhibitors in coolant deplete with both time and mileage. Many aftermarket coolants may not be formulated with the identical corrosion protection chemical strategy found in the Mazda FL22 coolant. Using an aftermarket coolant is a risk I am not willing to take. My cooling system remains safe from corrosion. Using my schedule I will not have coolant and internal corrosion issues for as long as I own my car. Peace of mind is worth it to me.

I use peak 50/50 blue European with no issues

I used the Peak coolant that was pink, it's been a few weeks and no catastrophe so I think you are fine.

I use the purple peak G13 in mine - from autozone. Its actually more pinkish when it pours. Made sure to flush with distilled water before adding the new coolant just in case but its been fine in my car. Don’t overthink it!

I noticed a coolant leak the other week and bang - this was the exact issue.