Does a 2001 BMW 325i require premium fuel?

The owners manual and even gas/fuel cap will tell you what you should put in. Regular low grade fuel - you will feel a difference in how the engine runs, it may even vibrate and just not feel right. I'm not too sure on this one, but I would imagine it will ruin the engine and may even affect MPG.

But the bigger question is WHY that is a concern for you. If you are concerned about the cost of filling up a BMW with premium fuel, then you should not own a BMW.
 
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