I was checking the powersteering fluid on the x5 and it is at the lower mark. Figured I will add aft fluid to what is in it already. My question is I don't know what kind of fluid is in it other then it is atf. The other concern is I can not tell if it is synthetic or regular. No burnt smell at all and it looks like it it is a reddish brown. So my question is can I add synthetic to what is in it? Also I can't find dexron 3
They had valvoline maxlife
Advanced auto brand
Castrol domestic multi vehicle
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