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went to dealer today for engine oil topup and they tried to sell me a bottle of tws10w60. i argued with them that its the same engine in the z4 35i n54t and they said no its an M engine so use 10w60.
i just want to make sure before i buy the oil myself ...the one recommended on this forum 5w30 is ok for hot weather regions like ours (outside temps in the summer are between 40-50+ deg cel) today it was 47 deg C.
is everyone actually using 10w60 in the gulf region??
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