How do i know if my testosterone level is low

antifreese consentrate i use frose temperature is about/lower then -60 C (-75 F), i have just meshured it. So if i will not mix it with water: freez -60 boil +200
This is recomended antifreez for all BMW exept mini:
Xstream G48
mix 65% antifreese with water recomended
!!!! dont mix with other coolants !!!
non Xstream G30 or G40
it can eat pipes if mix or damage somthing (etc)
i Washed my system with water before change. This collant is not recomended for my car, but it is the best for all with extra load- if you pull loads or drive much to mountains.

How do i know if my testosterone level is low

how do i know if my testosterone level is low

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