Quote:
Originally Posted by luca335i
Is it ok to use the oil for the M// cars or use a little thicker blend in the summer. Please state what brand you guys are using and any advice on which one.
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No.
Heavier oil may not provide sufficient lubrication and heat transfer. More isn't necessarly better. Plus your gas mileage may suffer.
Stick with BMW branded Castrol 5w-30 or Mobil One 0w-40.