What year 525i? The oil recommendations vary. Not all 525's use the same engine or the same oil.
The best oil you could use for the 525 i is magnatec or 20 w 50
The manufacturer recommends that you use 10 W-40 weight oil in your 1991 BMW 525. If the vehicle is operated in extremely cold climates a lighter oil can be used.
A 2006 BMW 525i typically uses synthetic motor oil with a viscosity rating of 5W-30. It's important to use oil that meets the BMW Longlife-01 specification to ensure optimal performance and engine longevity. Always check the owner's manual for specific recommendations and any updates regarding oil specifications.
mobile 1 the best bar none
93
use jumper cables Moran
yes unless it has been changed over
best oil that i use for my car right now is the 10W-40 works great for low and high outdoor temps ( it does depend on where you are and the average temp - look in owners manual should tell you in back of book)
To reset the increased emission light on a 2004 BMW 525i, you typically need to use an OBD-II scanner to clear the diagnostic trouble codes (DTCs). Alternatively, you can disconnect the battery for about 15 minutes, then reconnect it, which may also reset the light. However, it’s essential to first address any underlying issues that triggered the warning light before resetting it. Always consult your owner's manual or a professional if you're unsure.
Always use synthetic oils in BMW's.
You should ask about that question in a auto parts place or a Auto Zone, but do so when your actually ready to buy it... Because asking this kind of question online is kind of dumb.