Quote:
Originally Posted by Q_Subsub
I am due for an oil change and one of the local BMW performance shops recommended using LiquiMoly 10W-60 on my 2018 M2. It sounds so far out of range from the 0W-30 to 5W-40 discussion being held here, but I am still curious if anyone has run that oil in their M2 and what the experience has been.
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Don't use 10W-60 in an N55. If they insist, find another shop. The engine and oil pump were not designed with 10W-60 in mind. There is no rational reason to use 10W-60; thicker is not always better. Without any data, it could easily be worse. The high revving NA S engines (S54, S65, S85) used the 10W-60, and there is some evidence that even in those applications it is not ideal for street use. If they think that just because it has an M in the model number it needs 10W-60, they are not a very thoughtful or thorough shop.